What was unusual about the Hebrews' religious ideas?

Answer 1

The Hebrew people practiced monotheism. This made their religious ideas and practices unusual when compared to the religions of their neighboring people.

Answer:

Judaism differed from other ancient religions in the following ways:
1) It was the only religion in which God spoke to the entire assembled nation (Exodus ch.19) of over two million people.
2) It made a complete break from the surrounding idolatry. Their monotheism (belief in One God) set the Jews apart because other ancient nations did not share it. We've heard (for example) of the Greek mythology and Roman mythology. What not everyone is aware of is that idolatry tended to go hand in hand with cruel, licentious and excessive behavior, since the caprices which were narrated concerning the idols were adopted as an excuse to imitate those types of behavior.
Compare that to God, who reveals His attributes in the Torah as wise, kind, holy, and pure. God is One, so the command to imitate His attributes (Deuteronomy 8:6) was (and is) a straightforward matter once one is even minimally familiar with the Torah.
Accordingly, Judaism was:
3) The only ancient religion in which a large percentage of its adherents were literate and scholars.
4) It was the only religion in which the people were ruled by God, with no need for a king, for several centuries (see Judges 8:23 and 1 Samuel 8:4-7).
5) The concept of morality was also the work of the Hebrews' religion, including the dignity and value of a person. It is the responsibility of the community to support the widow, the orphan, the poor, and the stranger passing through.
6) Under the law of Judaism, everyone had recourse to the courts. A child, widow, wife, etc., could initiate legal action against any citizen to redress perpetrated harm. Compare this to those societies in which (at most) only mature, land-owning males had rights.
7) Government is accountable to a higher authority. In other ancient societies, the monarch was all-powerful. Among the Israelites, however, the king was under the constant scrutiny of the Divinely-informed prophets, who didn't hesitate to castigate him publicly for any misstep in the sight of God. And, other than for the crime of rebellion, the king couldn't punish any citizen by his own decision. He was obligated by the Torah-procedures like everyone else (Talmud, Sanhedrin 19a).
8) A robber repays double to his victim, or works it off. Unlike in many other ancient societies, in Judaism debtors are not imprisoned or harmed. They are made to sell property and/or work to repay what they owe. Compare this to the Roman practice by which anyone could accuse a man of owing them money and the debtor could be killed.
It is important to note that every one of the above existed in Judaism thousands of years earlier than in other nations. Here's just one example: Aristotle, who was among the greatest of the Greeks, and Seneca, the famous Roman, both write that killing one's young babies is perfectly acceptable.

Answer 2

The Hebrews developed religious ideas that differed from the religions of the people around them. The Hebrews had only a single God and the other people had many.

Answer:

According to tradition, the teachings of the Hebrews that differed from other peoples were developed by Abraham.

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), entered into 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 (unlike idolatry, which had tended to go hand in hand with cruel, licentious and excessive behavior, since the caprices which were narrated concerning the idols were adopted as an excuse to imitate those types of behavior).
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

Keel and Uehlinger (Gods, Goddesses and Images of God in Ancient Israel) examine thousands of religious artefacts in Palestine and the neighbouring territories, from the Middle Bronze Age down to Iron Age III and the Babylonian Exile. They demonstrate that there was a continuity of beliefs as the Hebrew nations evolved from their Canaanite forebears.

Keel and Uehlinger cite Lang, who says of Israelite and Jewish beliefs prior to the Babylonian Exile: "In the four and a half centuries during which there were one or two Israelite monarchies (ca. 1020-586 B.C.), there was a dominant, polytheistic religion that was indistinguishable from that of neighboring peoples. Insofar as there were differences between the Ammonite, Moabite, Edomite, Tyrian, etc. versions of religion, these beliefs stayed within the framework of Near Eastern polytheism, and each should be interpreted as a local variant of the same basic pattern. The Israelites . . . venerated their own protector god who was there to provide for health and family. But they venerated Yahweh [God] as well, the regional and national god, whose special domain dealt with war and peace issues. Finally, they worshiped gods who performed specific functions, those that were responsible for various special needs: weather, rain, women's fertility, etc." This is not the view that has come down to us in the Tanach (Old Testament), but we are enjoined not to confuse the minority opinion expressed in the religious literature preserved in the Tanach with the historic religion of Israel in the pre-Exilic period.

There were differences of detail in Hebrew beliefs compared with the beliefs of the people around them, even differences between those of Israel and Judah. Yahweh, apparently the Hebrew storm god, was to become the national god of both Israel and Judah, but also seems to have been important in Edom.

The Bible tells us that King Josiah, in the late monarchy of Judah, introduced religious reforms, making monotheistic worship of the God the national religion of Judah. As noted by Andrew D. H. Mayes (The World of Ancient Israel: Sociological, Anthropological and Political Perspectives, Sociology and the Old Testament) those reforms were either written back into the Bible at a later date, or were only partly successful prior to the Babylonian Exile. By the post-Exilic period, Jewish belief was either thoroughly or predominantly monotheistic, and thus differed from the religious beliefs of Judah's neighbours. Apart from Judaism, only the Zoroastrian religion of the Persians, who had liberated the Jews, was monotheistic.

Answer 4

Tradition states that The Hebrews developed their new teachings through the efforts of Abraham (18th century BCE), who founded Judaism.See also:

Archaeology

In what ways were the Hebrews different?

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 came from ancestry that had been aware of God a couple of centuries earlier but had afterwards slipped into idolatry (Joshua 24:2).

By the time of Abraham, the area where he lived was full of pagan cults; they were polytheistic, worshiping multiple deities. Abraham became the first to advance the idea of ethical monotheism: the worship of One God, and the appropriate ethical code of conduct.

Nimrod, the idolatrous tyrant, had brought Abraham's father (Terah) from the Semitic ancestral seat near the confluence 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. (See: Thirteen basic Jewish beliefs)

Abraham became the greatest thinker of all time. His originality, perseverance, strength of conviction, and influence, cannot be overestimated.

Abraham, with God's help, trounced the supremacy of the evil Nimrod.

He received God's promise of inheriting the Holy Land (Genesis ch.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 numerous descendants (ibid., ch.16, 21 and 25), in keeping with His promise (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), entered into 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).

The gravesite of Abraham, Isaac and Jacob and their wives (Genesis 49:29-32) is located in Hebron and has been known and attested to for many centuries.

All of the above practices of Abraham 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 (unlike idolatry, which had tended to go hand in hand with cruel, licentious and excessive behavior, since the caprices which were narrated concerning the idols were adopted as an excuse to imitate those types of behavior).

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 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.)