1 Samuel 21:3-5

3Now what do you have at your disposal? Give me five loaves of bread, or whatever can be found.”

4The priest replied to David, “I don’t have any ordinary bread at my disposal. Only holy bread is available, and then only if your soldiers have abstained from sexual relations with women.”

5David said to the priest, “Certainly women have been kept away from us, just as on previous occasions when I have set out. The soldiers’ equipment is holy, even on an ordinary journey. How much more so will they be holy today, along with their equipment!”