Jesus, in MATTHEW 5:17-18 wrote:Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.
For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
1) This says Jesus came to fulfil the OT law in its entirety.
2) Christians claim this means Jesus came to complete the law and replace it with a new convenent so that we are no longer bound by that OT covenent. If we are not still under the Old Testament law, then why did Jesus say we still are. Why did he demand quite emphatically that all people, for as long as the earth continues to exists, must fulfil every commandment in the Old Testament in every detail, EXACTLY as they are written?
The word fulfill is often interpreted as meaning to complete the law, but to complete the law such that it does not need to be followed any more (as in, that covenent is no longer binding) just does not make sense here. Mat 5:18 are not the words of someone intending to put an end to the necessity of following God's laws when, or soon after, they were spoken, since in that case "till Heaven and earth pass" would make no sense.
I suggest that fulfill meaning to follow, as in fulfilling the terms of a contract, is the unmistakable meaning Jesus is using. He reinforces that meaning by demonstrating in his own life that the entirety of the law can be followed. He not only is claimed to have led a perfect life (including following all of the OT covenent of the Jews, which includes himself), but seems to be extending that covenent here, not replacing it. In following verses, Jesus talks about people's behavior in the future and tell them that not fulfilling even the least important of the laws of the Torah would cause one to be ranked lowest in the kingdom of heaven. It would make no sense for Jesus to complete the law such that it was not necessary for anyone from then on to follow the law, and then for Jesus to go on and say every bit of the law must be followed by all, lest they be low on the totem pole in heaven.
Therefore, I propose that Mat 5:17-18 demonstrates a fundamental contradiction in modern Christian theology.
-- Alan