Christians today often recite creeds which were devised by post-biblical Gentile Christians centuries after Christ. They do that, while at the same time having never learned the Shema, the biblical creed which God himself gave to Moses. It is that creed which Jesus affirms. When he is approached by a Jewish man who asks him which is the most important of all of the commandments, Jesus responds that it is:
Hear, O Israel! The Lord is our God, the Lord is one. — Jesus (Mark 12:2) READ ENTIRE ARTICLE