Then came David to Nob to Ahimelech the priest: and Ahimelech came to meet David trembling, and said to him, Why are you alone, and no man with you?
"David came to Nob to Ahimelech"  (1 Samuel 21:1).  Eighty-five priests lived at Nob, serving the tabernacle which had been set up there following the Philistine's destruction of Shiloh.  It is also possible that the ark of the covenant had been brought to Nob from Kiriath-jearim by Saul in the early part of his reign.  Nob was but a village located a mile or two northeast of Jerusalem near Anathoth  (Isaiah 10:32).