Bede

And there was a cave, etc. This cave is a symbol of the Lord's tomb, whose entrance Saul entered to relieve himself, while the rulers of the kingdom of the Jews, having departed from Pilate, secured the tomb, sealing the stone with guards, in an attempt to block the path of resurrection to the Author of Life. By doing this, they revealed to all the long-conceived and steeped filth of their unfaithful minds. …

Commentary on Samuel ↗