The text does not mention the cave, but the endless chase and persecution he experienced.
He calls on God to protect him from the beasts and the pursuers. In the midst of this danger, he exalts God and sings glory to his name. He details the trap they set for him: a net to entangle his feet and a pit in his path, but they were victims of their own plot.
He closes with a refrain of praise:
Be exalted, O God, above the heavens
Let your glory be over all the earth.