Main Difference: The Messiah
Christianity is the fulfillment of Judaism. The Jewish faith predicts the coming of the Messiah. Christians believe that Christ was that Messiah, it is just that people of the Jewish faith have not realized that yet.
As the Messiah Christ fulfilled God's promise and salvation became perfect through belief in him rather than imperfect in people trying to keeping to the Jewish Law.
The one main belief that made Christianity different from Judaism was the belief that Jesus the Son of Mary and the Son of God was the long looked for Messiah that The Bible predicted. Judaism does not believe the Messiah has come.
Many Other Core Differences
The majority of core tenets found in Christianity completely go against the teachings of Judaism.
Examples of tenets that Judaism doesn't accept:
These are just some examples, there are far more differences between Judaism and Christianity.
There were a great many of them, but if restricted to only one, I would have to select the deification of Jesus.
If it's in the Torah, it's basic to Judaism.
Christianity, Islam, Judaism, and Rastafari are all Abrahamic religions that place value on the Old Testament. Hindu's have a different belief system, but many also see value in both the old and new testament of the Bible.One thing all have in common are the basic principles of morality. (Don't lie, cheat, steal, fornicate, murder, etc.)
The most basic belief in Protestant Christianity is that you accept Jesus Christ as your Lord and Savior, for Forgiveness of your Sins, by Faith.
Hersey is the belief that contradicts basic church teachings! Hope I helped
The most important belief of Islam is the belief in Allah (or God and same God in Christianity and Judaism) as the one and only one God with no partner, no companion, no son, no father, no associate, and no equivalence. For other beliefs and fundamentals, refer to question below.
The only real commonality between all three faiths is monotheism. The ideologies that shape these three faiths are each fundamentally different.
Judaism, Christianity, and Islam all share the same common origin, which they trace back to the patriarch Abraham. The three religions also have similar basic beliefs, such as only worshipping one god.
Judaism, Christianity, and Islam all share the same common origin, which they trace back to the patriarch Abraham. The three religions also have similar basic beliefs, such as only worshipping one god.
Belief in One God, the Creator, who took us out of Egypt. Belief in the Torah. Awareness that each person has an immortal soul.
Judaism is not considered the father of all religions. Most of the world's religions have no connection to Judaism. Biblical Judaism is considered the parent religion of the Abrahamic Religions (Modern Judaism, Christianity, and Islam)
The basic belief is that Jesus is the savior of mankind and by believing in Jesus your sins are forgiven and you can live an eternal life with God.