Matthew 5:17
Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfill.
The translation of “to fulfill” is lekayem in Hebrew (le-KAI-yem), which means to uphold or establish, as well as to fulfill, complete or accomplish. David Bivin has pointed out that the phrase “fulfill the Law” is often used as an idiom to mean to properly interpret the Torah so that people can obey it as God really intends.
It's pretty interesting to discover the meaning of words. It also might be important to understand what Jesus meant when He spoke. It why I dislike paraphrases and why I love Hebrew. By "fulfilling" the law, Jesus established it! Think about that.