1 Samuel 21:3-4

What is under thine hand? This does not mean that Ahimelech was himself carrying the shewbread out of the tabernacle, but simply, "What hast thou? The sense of the whole verse is, "Now, therefore, what hast thou at hand? Give me five loaves, or whatever there may be." Ahimelech answers, "There is no common bread at hand." I have no ordinary food; there is only hallowed bread, that is, the shewbread, which, after remaining in Jehovah's presence from sabbath to sabbath, was then to be eaten by the priests in the holy place (Le 1 Samuel 24:8 , 1 Samuel 24:9 ). As Ahimelech could not venture to refuse David's request, he asks if his attendants are at least ceremonially clean, as in that case the urgency of the king's business might excuse the breach of the letter of the commandment. Our Lord in Matthew 12:3 cites this as a case in which the inward spirit of the law was kept, and the violation of its literal precept thereby justified.