Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfill.
All Commentaries on Matthew 5:17 Go To Matthew 5
Theophylact of Ochrid
AD 1107
He was about to introduce new laws, yet He did not want them to think that He was opposed to God. Therefore He says, anticipating the suspicion that many would have, "I have not come to abolish the law, but rather to fulfill it." How did He fulfill it? First, He did everything which the prophets had foretold concerning Him, which is why the evangelist often says, "So that what was spoken by the prophet might be fulfilled." He also fulfilled every commandment of the law. "For He did no sin, neither was any guile found in His mouth" (1 Peter 2:22). And He fulfilled and completed the law in yet another way: whatever the law had sketched in outline, Christ fully painted in. The law said, "Do not murder’’; but Christ said, "Neither be angry without a cause." So too the painter does not destroy the sketch, but rather completes it.