Jesus began extending God's Kingdom soon He came on earth. His obedience, wit and actions have displayed his purpose on earth - to share God's Kingdom. He himself is "God's Kingdom" that's why He did verything that pleases the Father. He did the teaching at the Temple from his early age. He demonstrated wisdom that no ordinary man can equate. His humble   teaching on what the Father wants, reveals His divine nature. Yet, He was rejected by the people including the chief priests and Pharisees who were so insecure in Jesus' witty statements.They felt they were the ordained, witty, godly and have authorities over sharing laws.  They were looking for any fault that they can use to accuse Him. Finally,  "The stone which the builders rejected, the same was made the head of the corner". That stone that the builders (Priests and Pharisees) rejected is Jesus. And Jesus carries the triumph of God's Kingdom. The time they rejected Jesus, they also rejected God's kingdom. As the Bible say, 'Don't give the gold to the pig. It will just be wasted'.