I'm not really Jewish but I've heard that on Passover it's a religious service called a Seder where the families gather around and drink four cups of wine, eating matza and partaking of symbolic foods placed on the Passover Seder Plate. I also googled the Seder plate and it turned out that it's a plate that contains 6 symbolic foods ..

• Maror and Chazeret: Two types of bitter herbs, symbolizing the bitterness and harshness of the slavery which the Jews endured in Ancient Egypt. For maror, many people use freshly grated horseradish or whole horseradish root. Chazeret is typically romaine lettuce, whose roots are bitter-tasting. Either the horseradish or romaine lettuce may be eaten in fulfillment of the mitzyah of eating bitter herbs during the Seder.
• Charoset: A sweet, brown, pebbly paste of fruits and nuts, representing the mortar used by the Jewish slaves to build the storehouses of Egypt.
• Karpas: A vegetable other than bitter herbs, usually parsley but sometimes something such as celery or cooked potato, which is dipped into salt water (Ashkenazi custom), vinegar (Sephardi custom), or charoset (older custom, still common amongst Yemenite Jews) at the beginning of the Seder.
• Zeroa: A roasted lamb bone, symbolizing the korban Pesach (Pesach sacrifice), which was a lamb offered in the Temple in Jerusalem and was then roasted and eaten as part of the meal on Seder night.
• Beitzah: A roasted egg, symbolizing the korban chagigah (festival sacrifice) that was offered in the Temple in Jerusalem and was then eaten as part of the meal on Seder night.

Many modern Jews include an orange on the seder plate. The orange represents the fruitfulness for all Jews when all marginalized peoples are included, particularly gay men and lesbians.

During the holiday of Passover, all leavened food products and products made from the forbidden grains are not eaten. Additionally, Ashkenazi Jews have a category of food called 'kitniyot' which are allowed items but aren't eaten because they could be confused with foods that aren't allowed.
In principle, anything that does not contain leavening. Such foods as bread, crackers, cake or cereals are not eaten. We eat fruit, vegetables, kosher meat and fish, and kosher dairy. Matzoh takes the place of bread.

Ashkenazim (Jews of European descent) have a binding custom to avoid legumes, peas and lentils.

In practice, any processed food should have a passover kosher certification.

Sukkhot is celebrated because it is a time to remember and celebrate the time when the Israelites were travelling through the wilderness for 40 years, with God's protection. In Sukkot, to feel what the Israelites felt, Jews have to sleep for a week in the shelter that the Israelites slept in, a sukkah which is basically a little shelter with enough room to eat a meal in it and even sleep in it. It may be decorated with flowers, posters, cards, wine, fruits, etc. The foliage over the Sukkah should be thin enough to see the stars.

Answer:

Sukkot is important because it was commanded by God (Leviticus ch.23). It commemorates the protection which God gave us in the wilderness, and it gives thanks for the annual ingathering of grain. It also marks the beginning of mentioning the rainy season in our prayers.

Sukkot is the Jewish Festival of Booths, or Tabernacles.

It is a joyous festival that commemorates the final gathering of the harvest.

It also commemorates how God protected them in the wilderness after He took them out of Egyptian bondage.

Sukkot celebrates the israelites being led out of slavery by Moses and they eat traditional foods such as olives, wheat, and grapes. As part of the festival they sleep and camp out for seven days in huts called sukkahs, hence the word Sukkot. These sukkahs are mainly made of palms and natural timber.

Answer:

Sukkot was commanded by God (Leviticus ch.23). It commemorates the protection which God gave us in the wilderness, and it gives thanks for the annual ingathering of grain. It also marks the beginning of mentioning the rainy season in our prayers.

• We dwell in Sukkot (foliage-covered booths), and have festive meals there.
• We say special prayers, including prayers for rain.
• We wave the four species, to symbolize the upcoming rainy season (palm branch, citron, willow, myrtle).
• On the last day, we complete the yearly cycle of reading the whole Torah, and we dance with the Torah-scrolls.

I don't know of "the prophetic purpose", but I will be interested to know if any of these prophecies were fulfilled.

The Feast of Tabernacles, or Feast of Booths, is a harvest festival and was fixed by the completion of the harvest:- Deu 16:13-15 KJV Thou shalt observe the feast of tabernacles seven days, after that thou hast gathered in thy corn and thy wine: [v.14] And thou shalt rejoice in thy feast, thou, and thy son, and thy daughter, and thy manservant, and thy maidservant, and the Levite, the stranger, and the fatherless, and the widow, that are within thy gates. [v.15] Seven days shalt thou keep a solemn feast unto the LORD thy God in the place which the LORD shall choose: because the LORD thy God shall bless thee in all thine increase, and in all the works of thine hands, therefore thou shalt surely rejoice.

This Feast was both commemorative in that it looked back to their recent harvest, but also prophetic in that it is also looking ahead to the greater harvest of souls at the return of Jesus Christ and the end of the Age.

Mat 13:24-31, 35-43 KJV Another parable put he forth unto them, saying, The kingdom of heaven is likened unto a man which sowed good seed in his field: [v.25] But while men slept, his enemy came and sowed tares among the wheat, and went his way. [v.26] But when the blade was sprung up, and brought forth fruit, then appeared the tares also. [v.27] So the servants of the householder came and said unto him, Sir, didst not thou sow good seed in thy field? from whence then hath it tares? [v.28] He said unto them, An enemy hath done this. The servants said unto him, Wilt thou then that we go and gather them up? [v.29] But he said, Nay; lest while ye gather up the tares, ye root up also the wheat with them. [v.30] Let both grow together until the harvest: and in the time of harvest I will say to the reapers, Gather ye together first the tares, and bind them in bundles to burn them: but gather the wheat into my barn. ...[v.36] Then Jesus sent the multitude away, and went into the house: and his disciples came unto him, saying, Declare unto us the parable of the tares of the field. [v.37] He answered and said unto them, He that soweth the good seed is the Son of man; [v.38] The field is the world; the good seed are the children of the kingdom; but the tares are the children of the wicked one; [v.39] The enemy that sowed them is the devil; the harvest is the end of the world; and the reapers are the angels. [v.40] As therefore the tares are gathered and burned in the fire; so shall it be in the end of this world. [v.41] The Son of man shall send forth his angels, and they shall gather out of his kingdom all things that offend, and them which do iniquity; [v.42] And shall cast them into a furnace of fire: there shall be wailing and gnashing of teeth. [v.43] Then shall the righteous shine forth as the sun in the kingdom of their Father. Who hath ears to hear, let him hear.

Mar 4:29 But when the fruit is brought forth, immediately he putteth in the sickle, because the harvest is come.

Luk 10:2 Therefore said he unto them, The harvest truly is great, but the labourers are few: pray ye therefore the Lord of the harvest, that he would send forth labourers into his harvest.

Joh 4:35 Say not ye, There are yet four months, and then cometh harvest? behold, I say unto you, Lift up your eyes, and look on the fields; for they are white already to harvest.

Rev 14:14-20 KJV And I looked, and behold a white cloud, and upon the cloud one sat like unto the Son of man, having on his head a golden crown, and in his hand a sharp sickle. [v. 15] And another angel came out of the temple, crying with a loud voice to him that sat on the cloud, Thrust in thy sickle, and reap: for the time is come for thee to reap; for the harvest of the earth is ripe. [v. 16] And he that sat on the cloud [ie Christ] thrust in his sickle on the earth; and the earth was reaped. [v. 17] And another angel came out of the temple which is in heaven, he also having a sharp sickle. [v. 18] And another angel came out from the altar, which had power over fire; and cried with a loud cry to him that had the sharp sickle, saying, Thrust in thy sharp sickle, and gather the clusters of the vine of the earth; for her grapes are fully ripe. [v. 19] And the angel thrust in his sickle into the earth, and gathered the vine of the earth, and cast it into the great winepress of the wrath of God. [v. 20] And the winepress was trodden without the city, and blood came out of the winepress, even unto the horse bridles, by the space of a thousand and six hundred furlongs.

(Every Feast of the Old Testament had both a past physical fulfillment and a future fulfillment which is not only allegorical but also literal.)

Answer:

Each of God's seven annual Holy Day feasts picture a phase of His plan for mankind.

The Feast of Tabernacles, the next-to-the-last commanded feast each year, pictures the "thousand-year rule of Christ on the earth."

The "Last Great Day," which is at the end of the Feast of Tabernacles (the eighth day), pictures "Judgment Day."

Answer:

To understand the Feast of Tabernacles, one must understand the time in which the event occurs

Its the last of the feasts proclaimed by our Father in his list of Feasts. You will find them written in Leviticus 23.

Further one must understand that our Fathers calendar is not the same as mans. Our Fathers calendar runs with the events of the sun (Equinox and Solstice), the first beginning with what man calls the Spring equinox. Move foreword from there to get to the 7th month.

The feast of tabernacles occurs after the blowing of the 7th trumpet (1st day of the 7th month). 7 indicates completeness. Therefore the feast of tabernacles occurs after the return of Jesus Christ (the real one, not the fake), its a celebration of those who overcame the beast.

Read Leviticus 23:40 and Revelation 7:9

Who fulfilled the covenant, or who did the covenant pass through?

The covenant went from Jacob, to Judah, to Perez, on down to David, then down to Jesus.

Answer:

Amid the religious confusion in the world, few people recognize that God made "two" promises to Abraham that became their "covenant" [agreement].

For Abraham's "obedience to His Commands" God's two promises were a "material" one of "national greatness".... and a "spiritual" one, which is the promise of "global blessing"... "salvation through the Christ."

The "second" promise most people can recite. But the first one is lost on folks.

"...Get thee out of thy country, and from thy kindred, and from thy father's house, unto a land that I will shew thee: and I WILL MAKE OF THEE A GREAT NATION, and I will bless thee, and make thy name great..." (Gen.12:1-2).

This first promise to Abraham is not a "spiritual" or religious one. Although, ultimately, it shall be fulfilled in the Kingdom of God [but that Great Nation, flesh and blood cannot inherit - I Cor.15:50]. Most people gloss right over it when they read the words:

"PROMISED LAND."

Of course, it's been "spiritualized away" by all the religious confusion in the world since then. But the promise of the Christ is a different part of Abraham's promise.

"...and I will bless them that bless thee, and curse them that curseth thee: and IN THEE SHALL ALL THE FAMILIES OF THE EARTH BE BLESSED." (Gen.12:3)

A "blessing" is of a "spiritual" nature... as is the "faith" that Abraham displayed through his "obedience" to God's command:

"So Abram departed..." (verse 4).

"...wilt thou know, O vain man, that faith without works is dead?" (James 2:20)

These two promises of God to Abraham remained together and were passed down as one promise through two generations [Isaac and Jacob] before they became separated.

Again... the spiritual "blessing" promise of "salvation," the world recognizes as "the promise of the Anointed One [the Christ] which Jacob passed on to "Judah" [Gen.49:8-12].

Jacob, however, [his name was changed to "Israel"]... on his deathbed... passed on the "material" promise to "Joseph's two sons, Manasseh and Ephraim -- splitting it in two between them! [Gen.48]

The Bible reveals a distinction between the "Jews" and "Israel." In other words, not all Israelites are 'Jews' [the descendants of 'Judah'].

All Jews [desdendants of Judah] are Israelites... but not all Israelites [Gad, Zebulun, Naphtali, Dan, Joseph, etc] are Jews [descendants of Judah]. Another way of saying it is: All native-born Virginians are Americans... but not all Americans are native-born Virginians.

In Genesis 48, the Abramic promise of "national greatness" became separated from the spiritual promise, and went to Ephraim and Manasseh. The name "ISRAEL" was "named on them"... NOT ON THE JEWS [Judah].

"The Angel which redeemed me from all evil, bless the lads; and LET MY NAME [Jacob's name was Israel] BE NAMED ON THEM, and the name of my fathers Abraham and Isaac; and let them grow into a multitude in the midst of the earth." (Gen.48:16)

"...salvation [the spiritual promise to Abraham] is of the Jews." (John 4:22)

The world recognizes this part of the promise.

But it's blind to the material "Promised LAND" phase... which the deceived world believes to be a small tract of land in the Middle East. The passing of time, man's worship of the god of this world, and global religious confusion has altered God's promise into "Going to Heaven" [which has always been the burning desire of Satan the Devil -- "...for thou hast said in thine heart, I will ascend into heaven..." - Isa.14:13].

The world sees Jesus... sees the promise of salvation, whether it believes it or not. Jesus has "partially" fulfilled that phase of God's promise to Abraham. It's only "partial" because "all the families of the earth" have not yet been "blessed" [saved] with God's salvation.

But, the world remains ignorant of the material promise passed on to "Joseph" through his two sons, Ephraim and Manasseh. And if that's not enough, the ten tribes of the House of Israel that were headed up by "Joseph's" two blessed tribes DISAPPEARED from world view and world history -- their descendants scattered among the nations of the world. Not only does the world not know who these "blessed" descendants of Israel are... the descendants don't know who they are, either.

Unknown to the world, God did eventually cause Abraham's descendants to prosper materially in spite of themselves, and these two "brother-nations," each in turn, became great nations... the recipients of the majority of the vast wealth that the earth can bestow upon any nation. They are Great Britain [Ephraim] and America [Manasseh].

Both phases of God's promises to Abraham, however, haven't been fulfilled in their entirety. The amount of "land" that God promised Abraham kept spreading and growing to include the "whole world."

"For the promise, that he should be the heir of the world, was not to Abraham, or to his seed, through the law, but through the righteousness of faith." (Rom.4:13) How many people even know that Abraham's "Promised Land" is THE EARTH, instead of "heaven?"

"...if ye be Christ's, then are ye [faithful] Abraham's seed, and HEIRS [of the world] according to the promise." (Gal.3:29)

Not many people know that the Creator God of the Old Testament was and is "Jesus Christ" -- John 1:3. And that it was Jesus Christ who made the promises to Abraham. Faith is faith, beit in the Old Testament or New.

"Know ye therefore that they which are of faith, the same are the children of Abraham. And the scripture, foreseeing that God would justify the heathen through faith, preached before the gospel unto Abraham, saying, In thee shall all nations be blessed. So then they which be of faith are blessed with faithful Abraham." (Gal.3:7-9)

God's "covenant" with Abraham, which was passed down to his descendants, Isaac, Jacob, Ephraim, Manasseh, Judah, and all the other scattered children of Israel... hasn't been fulfilled yet.

The "great nation" that Abraham was to become, the coming "Kingdom of God"... and Jesus Christ, the King of that Kingdom, haven't been established on earth, yet.

Moreover... in the global confusion that is religion... most religious people seem eager [in word, at least] to "get off of planet earth," thinking and being taught that "heaven" is where they're all headed.

Most religious folks think "God's plan is done." They seem to be waiting to "die and go to heaven"... even though there is no scripture in the Bible that says: "go to heaven" [except for the one cited "desire" of Satan, this world's god.

The covenant with Abraham, Isaac, Jacob, Israel's twelve sons, and all their descencants has not been fulfilled yet.

They are still scattered to the four winds... lost in spirit and national identity among the nations of the world. The Bible says that they will all be gathered by the promised Messiah:

"...I will take the stick of Joseph, which is in the hand of Ephraim, and the tribes of Israel his fellows, and will put them with him, even with the stick of Judah [the Jews], and make them one stick, and they shall be one in mine hand... and I will make them one nation... and one King shall be King to them all: and they shall be no more two nations, neither shall they be divided into two kingdoms any more at all." (Ezek.37:19-22)

This hasn't been fulfilled, yet.

For the ultimate fulfillment of the covenant to take place [the promises of God of the Kingdom of God and Salvation for obedience to His voice] for "all the families of the earth"... a radical change in human nature must take place. A "spiritual rebirth." A change of man's natural selfish, rebellious heart for one of selfless love.

The old covenant has been replaced by the new one through Jesus Christ. But He hasn't fulfilled it, yet. He hasn't returned, yet. He hasn't saved all the families of the earth, yet. He hasn't gathered the two houses of Israel [Israel and Judah] together into a single House of Israel, yet.

"For this is the covenant that I will make with the House of Israel after those days, saith the Lord; I will put My laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to Me a people... for ALL SHALL KNOW ME, from the least to the greatest." (Heb.8:10-11)

All the families of the world don't know Him, yet. Jesus Christ, the promised Messiah of the covenant, says that He is the King... and that the Great Nation of Abraham, the Kingdom of God, is near. But He has not yet returned to fulfill it.

The seventh day of the sukkotfestival is called Hoshana Rabbah During each of the preceding six days of the Succot festival, a single stanza of the hoshanotlitany is said the congregation makes a circuit around the reader's platform carrying the four-speciesand during the recital (except on Sabbath) poetic supliations are made concerning agricultural crops for the coming year, that they not suffer from various natural disasters. On Hoshana Rabbah---literally "the Enhanced Hoshana"--- because seven circuits (hakkafot) are made, while, in addition to the stanzas that had been recited during the past six days, additional more serious hoshanotare added. They commemorate the circuits around the altarmade by the priests in the temple-in-jerusalem.

Read more: hoshana-rabbah