Matthew 12:1-8 (NIV)

12 At that time Jesus went through the grainfields on the Sabbath. His disciples were hungry and began to pick some heads of grain and eat them. ² When the Pharisees saw this, they said to him, “Look! Your disciples are doing what is unlawful on the Sabbath.”

³ He answered, “Haven’t you read what David did when he and his companions were hungry? ⁴ He entered the house of God, and he and his companions ate the consecrated bread—which was not lawful for them to do, but only for the priests.⁵ Or haven’t you read in the Law that the priests on Sabbath duty in the temple desecrate the Sabbath and yet are innocent? ⁶ I tell you that something greater than the temple is here. ⁷ If you had known what these words mean, ‘I desire mercy, not sacrifice,’ you would not have condemned the innocent. ⁸ For the Son of Man is Lord of the Sabbath.”