Matthew 2:3-6
Reports of this soon reached the king, and greatly agitated not only him but all the people of Jerusalem.
Matthew 2:13
When they were gone, and angel of the Lord appeared to Joseph in a dream and said, "Rise: take the babe and His mother and escape to Egypt, and remain there till I bring you word. For Herod is about to make search for the child in order to destroy Him."
Matthew 2:16
Then Herod, finding that the Magi had trifled with him, was furious, and sent and massacred all the boys under two years of age, in Bethlehem and all its neighbourhood, according to the date he had so carefully ascertained from the Magi.