There is a theological continuity between the Jews and the emerging Christians. And all the data on the Divine revelation of the Old Testament form an integral part of their heritage for Christians. It is also obvious that there is much in common between Judaism and Christianity in terms of faith. And therefore, in Christianity, something belongs to Jewish religious thought (An Overview of Matthew). But there were already established concepts of religion, sin, punishment, redemption, and reward. Moreover, the images that existed in the world before its appearance were used to create the forms in which it clothed its Sacred Tradition (Old Testament, 1-11). And according to historical data, as it is already known, Jesus Christ was a Jew, was educated in the religious traditions of Israel, spoke the language of his people, and perceived Israel’s culture. He was, in the full sense, a Jew; hence we can say that at Its inception, Christianity was Judeo-Christianity. On the one hand, it represented something radically different from Judaism because a new Revelation appeared in Jesus Christ, and on the other hand, something very close to Judaism. Christianity, in the beginning, reflected a purely Jewish form of thinking.
References
An Overview of Matthew. The Bible Project.
Old Testament. Genesis 1-11. The Creation of the World.