The Universal Jewish Encyclopedia makes it very clear that the Talmud, not the Torah or Old Testament, is the supreme authority for Judaism.

Thus the ultimate authority for Orthodoxy is the Babylonian Talmud. The Bible itself ranks second to it in reality, if not in theory. (Universal Jewish Encyclopedia, "Authority" pg. 637)¹

The Talmud make it clear that Judaism regards Jesus as a "charlatan," "magician," "seducer," and "deceiver." The Talmud also alleges that the biblical account of the crucifixion was a lie, maintaining that Jesus was strangled in a pit of dung, and that they hated him so much they executed him four different ways! Christ is portrayed as the bastard son of a harlot, and it even suggests that He was a Gentile. In some startling passages it boasts that the Romans had nothing to do with the death of Jesus, but that the Jews alone executed him for His idolatry. It also states that He has been conjured from the dead by a Jewish magician and then punished by being boiled in hot semen.

Below are direct quotes I confirmed from the Talmud, dealing with Jesus and Christians:

When I first encountered these Talmudic quotations in Elizabeth Dilling’s book The Jewish Religion, such as those above and those reproduced in chapter 16, I told myself that they couldn’t be accurate, that they had to be fakes or forgeries. Then I looked up the offending quotations and confirmed their presence in the Soncino Edition (the most popular 20th century English translation of the Talmud). The anti-Gentile quotations also received ample coverage in the Jewish Encyclopedia, enough so that no one could seriously doubt their authenticity. The Jewish Encyclopedia even details how the English translations use code words such as Amalakites, Cutheans, Egyptians, heathens, and other monikers to denote Gentiles in general, using these specific terms to hide from Gentiles how viciously the Talmud speaks of them. It also says clearly that the word "Balaam" is an alias for Jesus Christ.