Charles Ellicott Commentary 2 Kings 20:2

"Then he turned his face to the wall, and prayed unto Jehovah, saying," — 2 Kings 20:2 (ASV)

Then he turned his face. —And he turned his face round (1 Kings 21:4). Hezekiah did so to avoid being disturbed in his prayer; and perhaps because grief instinctively seeks a hiding-place.