'Kneeled' in the Bible

Afterward David got up and went out of the cave. He called out after Saul, "My lord, O king!" When Saul looked behind him, David kneeled down and bowed with his face to the ground.

He said to her, "What about his appearance?" She said, "An old man is coming up! He is wrapped in a robe!" Then Saul realized it was Samuel, and he bowed his face toward the ground and kneeled down.