Mt. 5:17-48; Lk. 6:27-36
Jesus pointed out contrasts between His teaching and that of the Old Testament and the traditions of the Jews. He stated that He did not come to destroy the Law or the Prophets, but to fulfill or make their teaching about Him come true.
Some of the contrasts Jesus pointed out dealt with anger, adultery, swearing and oaths, retaliation and love. He introduced each topic with, “You have heard…but I say.” These were new concepts and He expected the apostles to grasp and teach them to others.