What people first practiced the religion of judaism?

Answer 1

AnswerScholars say that monotheistic Judaism began in Judah during the reign of King Josiah.
The Bible itself tells us that the northern kingdom of Israel was at all time polytheistic, and on this evidence did not practise Judaism as we know it.

The people of Judah, during the time of the monarchy are generally referred to as Judahites. Judasim continued to develop during and after the Babylonian Exile, when the followers of Judaism began to be known as Jews.

Answer 2

Abraham and his descendants.

According to tradition, Abraham founded Judaism, and Moses later received the Torah from God.
Abraham, tenth generation descendant of Noah, of Hebrew lineage, was the son of Terah, uncle of Lot, father of Isaac, grandfather of Jacob, and ancestor of the Israelites. His story is in Genesis ch.11 (end), through ch.25. Jewish tradition states that he was the first to teach belief in One God; and it is in his merit that Jews continue to exist (Genesis 18:19, and ch.17).
Abraham (18th century BCE) came from ancestry that had been God-fearing a couple of centuries earlier but had afterwards slipped into idolatry (Joshua 24:2). Nimrod, the idolatrous tyrant, had brought Abraham's father (Terah) from the Semitic ancestral seat near the conjunction of the Balikh and the Euphrates, and instated him in a position of power in his army in the royal Babylonian city of Ur, where Abraham was born. Nimrod persecuted any who would question his idolatrous cult.
The Kuzari (Rabbi Judah HaLevi, 1075-1141) states that Abraham was gifted with high intelligence; and, as Maimonides (1135-1204) describes, Abraham didn't blindly accept the ubiquitous idolatry. The whole populace had been duped, but the young Abraham contemplated the matter relentlessly, finally arriving at the conclusion that there is One God and that this should be taught to others as well. This is what is meant by his "calling out in the name of the Lord" (Genesis ch.12). As a young man, he remonstrated with passersby in public, demonstrating to them the falsehood of their idols; and our tradition tells how he was threatened and endangered by Nimrod.
Subsequently, Terah relocated to Harran; and it is here that Abraham began to develop a circle of disciples (Rashi commentary, on Genesis 12:5).
Later, God told Abraham in prophecy to move to the Holy Land, which is where Abraham raised his family.
He continued his contemplations, eventually arriving at the attitudes and forms of behavior which God later incorporated into the Torah given to Moses. Abraham, with God's help, singlehandedly trounced the supremacy of the evil Nimrod. He received God's promise of inheriting the Holy Land (Genesis 13). He strove to raise a family (Genesis ch.15, 17, and 24) which would serve God (Genesis 18:19); and God eventually blessed his efforts, granting him many children (ibid., ch.16, 21 and 25), as He had promised (Genesis ch.17). Abraham founded the Jewish people and lived to see his work live on in the persons of Isaac and Jacob; and he taught many other disciples as well (Talmud, Yoma 28b). He saved the population of the south of Canaan from invading foreign kings (Genesis 14); and he was feared by neighboring kings (ibid., ch.12 and 20). Abraham gave tithes (Genesis ch.14), made a covenant with God (Genesis ch.15 and 17), welcomed guests into his home (Genesis ch.18) unlike the inhospitable Sodomites (Genesis ch.19), prayed for people (Genesis ch.18), rebuked others when necessary (Genesis ch.20), eulogized and buried the deceased (Genesis ch.23), and fulfilled God's will unquestioningly (Genesis ch.22). He became renowned as a prince of God (Genesis 23:6).
All of these forms of behavior were based upon the ways of God, which Abraham comprehended through his contemplations. These, and similar personality traits, were the teachings of Abraham and his descendants.
It is therefore clear why God expresses His love for Abraham (Isaiah 41:8) and calls Himself the God of Abraham (Genesis 26:24), and says that Abraham obeyed Him fully (Genesis 26:5). And this is why, according to our tradition, Abraham is credited with having begun the religion which became known as Judaism. However, Abraham and his descendants observed their traditions voluntarily, until the Giving of the Torah to Moses 3325 years ago, when God made it obligatory.

Answer 3

Hebrews, Israelites, Jews, depending on the historical era.

"Hebrews" (Ivrim) actually means descendants of Eber (Ever). Ever was an ancestor of Abraham (Genesis ch.10-11) and the earliest Hebrews were Abraham's uncles and cousins for several generations back.
In 1934-39, excavations were conducted at ancient Mari on the Euphrates River. They found that ancient towns were named after the ancestors of Abraham: The city of Nahor was found near the city of Harran which exists to this day. Equally clear signs of early Hebrew residence appear in the names of other towns nearby: Serug (Assyrian Sarugi), Terah (Til Turakhi, "Mound of Terah"), and Peleg (Paliga, on the Euphrates). All these names are found in Genesis ch.11.
Abraham himself was called a Hebrew (Genesis 14) because of his ancestors, not because he was the first one. That is the simple meaning of Genesis 14:13. Poetically, however, Abraham is called Ivri because the name also translates to "other side." Abraham was on "the other side" since he was the only monotheist (Midrash Rabbah 42:8) until his teachings spread.
However, "Hebrews" is often used to refer to Abraham's Israelite descendants. In this sense it can refer to the Jewish people.
"Israelites" refers to the people down to about the time of the destruction of the First Temple some 2500 years ago. "Jews" refers to the people from Second Temple times onward, because after the Assyrian conquest the remaining Israelites were (and are) mostly from the Israelite tribe of Judah.
In 2000, the analysis of a report by Nicholas Wade "provided genetic witness that Jewish communities have, to a remarkable extent, retained their biological identity separate from their host populations, showing relatively little intermarriage or conversion into Judaism over the centuries. The results accord with Jewish history and tradition."

Answer 4

Hebrews, Israelites, Jews, depending on the historical era. "Hebrews" (Ivrim) means descendants of Eber (Ever). Ever was an ancestor of Abraham (Genesis ch.10-11) and the earliest Hebrews were Abraham's uncles and cousins for several generations back. They were among the Western Semites and lived in northern Mesopotamia, near the confluence of the Balikh and the Euphrates.
Abraham (18th century BCE) was called a Hebrew (Genesis ch.14) because of his wider family.

Poetically, however, Abraham himself is called Hebrew because that name (Ivri) also translates to "the other side." Abraham was figuratively on "the other side" since he was the only monotheist (Midrash Rabbah 42:8) until his teachings took root. His ancestors and cousins had slipped into idolatry well before his time, as is evident from Genesis 31:30, 31:53, and Joshua 24:2. For that reason, Jews do not bestow on them the honorific title of ancestors despite the genealogical connection.
We credit Abraham as our first ancestor despite knowing exactly who came before, since it was Abraham who founded our beliefs. Thus, "Hebrews" is often used to mean Abraham and his Israelite descendants, instead of his wider family. In this sense it can refer to the Jewish people.

• Link: Abraham's biography
  

The word "Hebrews" can continue to refer to Abraham's descendants until the lifetime of Jacob. After that, we prefer "Israelites," since Jacob was given that name by God (Genesis ch.35), and it is considered a national title; one of honor. "Israelites" refers to the people (Jacob's descendants) down to the Assyrian conquest (133 years before the destruction of the First Temple), some 2600 years ago.

• Link: Jewish ancestry
  

"Jews" refers to the same people, from the end of First Temple times up to this day, because after the Assyrian conquest the Israelites who remained in the land were (and are) mostly from the Israelite tribe of Judah, and the land was then called Judea. But all the above terms are occasionally interchanged.

In modern usage, we prefer to use the term "Hebrew" only to refer to the language.

Answer 5

Way back when it all began, they were called 'Hebrews', then 'Israelites',

and now they're simply called 'Jews'.