'Knees' in the Bible

Again he sent the captain of a third fifty with his fifty. The third captain of fifty went up, and came and fell on his knees before Elijah, and begged him, and said to him, "Man of God, please let my life, and the life of these fifty your servants, be precious in your sight.

When he had taken him, and brought him to his mother, he sat on her knees until noon, and then died.