'Cave' in the Bible

{To the chief Musician, Altaschith, Michtam of David, when he fled from Saul in the cave.} Be merciful unto me, O God, be merciful unto me: for my soul trusteth in thee: yea, in the shadow of thy wings will I make my refuge, until these calamities be overpast.

{Maschil of David; A Prayer when he was in the cave.} I cried unto the LORD with my voice; with my voice unto the LORD did I make my supplication.