David went to the town of Nob to see Ahimelech the priest. Ahimelech trembled when he saw him. “Why are you alone?” he asked. “Why is no one with you?”
References for 1 Samuel 21:1
“The king has sent me on a private matter,” David said. “He told me not to tell anyone why I am here. I have told my men where to meet me later.
Now, what is there to eat? Give me five loaves of bread or anything else you have.”
“We don’t have any regular bread,” the priest replied. “But there is the holy bread, which you can have if your young men have not slept with any women recently.”
“Don’t worry,” David replied. “I never allow my men to be with women when we are on a campaign. And since they stay clean even on ordinary trips, how much more on this one!”
Since there was no other food available, the priest gave him the holy bread—the Bread of the Presence that was placed before the in the Tabernacle. It had just been replaced that day with fresh bread.