'Ground' in the Bible

and it was announced to the king, “Nathan the prophet is here.” He came into the king’s presence and bowed to him with his face to the ground.

Bathsheba bowed with her face to the ground, paying homage to the king, and said, “May my lord King David live forever!”

Then Solomon said, “If he is a man of character, not a single hair of his will fall to the ground, but if evil is found in him, he dies.”

While Obadiah was walking along the road, Elijah suddenly met him. When Obadiah recognized him, he fell with his face to the ground and said, “Is it you, my lord Elijah?”

So Ahab went to eat and drink, but Elijah went up to the summit of Carmel. He bowed down on the ground and put his face between his knees.