Matthew 12:1-5

At that time Jesus went through the grainfields on the Sabbath. And His disciples were hungry, and began to pluck heads of grain and to eat. And when the Pharisees saw it, they said to Him, “Look, Your disciples are doing what is not lawful to do on the Sabbath!” But He said to them, “Have you not read what David did when he was hungry, he and those who were with him: how he entered the house of God and ate the showbread which was not lawful for him to eat, nor for those who were with him, but only for the priests? Or have you not read in the law that on the Sabbath the priests in the temple profane the Sabbath, and are blameless?