Pulpit Commentary: "The force of our Lord's reasoning is this: David, a man after God's own heart, when sorely pressed by hunger, applied to the high priest and took some of these sacred loaves, loaves which under ordinary circumstances it was not lawful for the lay people to eat, because he wisely judged that a positive law ought to yield to a law of necessity and of nature; which intimates to us that in a grave necessity of famine, life may be lawfully preserved by eating even sacred bread which has been dedicated to God. Therefore, in like manner, was it lawful for Christ and his disciples to pluck the ears of corn on the sabbath day, that by rubbing them in their hands they might pick out the good grain and satisfy their hunger."