From the Torah which God gave (Exodus 24:12).
the teachings of the Torah are Judaism.
The teachings of Judaism can be found in the The Hebrew Bible, the Mishna, The Talmud, and many other texts.
yes he was
Orthodox Judaism
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Judaism and Christianity.
Belief in the God-given Torah.
No. Jews are descendants of Jacob, and who practice Judaism, while Muslims follow the teachings of Mohammad. Judaism and Islam are two different religions.
Christianity Claims to be true to the teachings of Chirist.
Depends whom you ask. According to Judaism, he departed from Jewish teachings.
Yes, Judaism is Biblical in that the Torah, which means Teachings, is the core of the Jewish religion. The history of Judaism can be found in the texts that make up the complete Jewish Bible, which is called the Tanach: Torah (Teachings), Nevi'im (Prophets), K'tuvim (Writings). The Christian Old Testament was based on the Tanach, however, it was altered to support the teachings of Christianity.
Judaism is a religion of life, not of afterlife. We follow the teachings of the Torah to improve our lives, and not for eternal reward.