And it happened on the Sabbath, that as he was going through the grain-fields, his disciples began to make a path and pick some heads of grain. 

And the Pharisees said to him, ‘Look, why do they do what is not lawful on the Sabbath?’

And he said to them: ‘Have you never read what David did when he had a need and he was hungry, and those with him, how he went into the House of God (near the passage about  Abiathar the High Priest) and they ate the sacred bread, which it is not lawful to eat, except the priests, and he also gave it to the you who were with him. ‘

And he said to them: ‘The sabbath came to be for people, not people for the sabbath. 

Therefore the Son of Man is lord of the Sabbath also. ‘

O thou, who art the light of the minds that know thee,
the life of the souls that love thee,
and the strength of the wills that serve thee;
help us so to know thee that we may truly love thee;
so to love thee that we may fully serve thee,
whom to serve is perfect freedom.
Amen