John Wesley on 1 Samuel 21:4

There is, &c. - Here in the tabernacle: though doubtless he had other provisions is his house; but David was in great haste, and in fear of Doeg whom he saw, and knew and therefore would not stay 'till any thing could be fetched thence. There was a double impediment to the giving this bread to them; Its sacredness in itself; which the priest implies, and David answers ver.5, and the priest was satisfied therein by David's great necessities. The abstinence from all women, which he supposed should be in those that use it; concerning which he now enquires. And though he mentions this only concerning David's young men, and out of reverence forbears to name him; yet he is also included in the number, as David's answer shews.