Says who? Definitely not Jesus himself as quoted in the New Testament (his words, directly quoted):
Matthew 5:17-18
"Think not that I came to destroy the law or the prophets: I came not to destroy, but to fulfil. For verily I say unto you, Till heaven and earth pass away, one jot or one tittle shall in no wise pass away from the law, till all things be accomplished."
The "law or the prophets" is, of course, everything written in the Old Testament, where different chapters were attributed to the different prophets already in Jesus' time.
He makes it even stronger:
"Ye have heard that it was said, 'Thou shalt not commit adultery': but I say unto you, that every one that looketh on a woman to lust after her hath committed adultery with her already in his heart" (Matthew 5:27-28)
Verily, read thine Bible, if you believe it's inspired by God. Read it yourself. Don't believe what others interpret.
Or maybe accept that we shouldn't take that book too seriously?