Matthew 21:12-46. Jesus cleansed the Temple and threw out the money changers. The spiritual leaders were offended that people sang “Hosanna in the highest” at the triumphal entry, even that little children sang it. As an object lesson Jesus cursed a fig tree, the symbol of Israel, and it withered. The spiritual leaders questioned Jesus authority. Instead of giving an answer Jesus gave two parables, the one about the two sons and the parable about the wicked tenants. Moving on, Jesus quoted scripture by saying :The stone the builders rejected has become the cornerstone” meaning that the kingdom of God will be inherited by another people.
In Deuteronomy 6 Moses laid out The Greatest Commandment, he recommended the Israelites to wear phylacteries to keep them always in remembrance of the LORD and cautioned against disobedience. It is surprising how many of New Testament references there are to the Old testament Law; some are listed here.