1 Samuel 21:3-5

3And now what is under thy hand? give me five loaves in my hand, or what may be found.

4And the priest answered David and said, There is no common bread under my hand, but there is holy bread; if the young men have kept themselves at least from women.

5And David answered the priest and said to him, Yes indeed, women have been kept from us about these three days, since I came out, and the vessels of the young men are holy, and the [bread] is in a manner common, and the more so, because to-day [new] is hallowed in the vessels.