'Knees' in the Bible

So Ahaziah again sent a captain of a third fifty with his fifty [fighting men]. And the third captain of fifty went up and came bowed down on his knees before Elijah, and begged him [for compassion] and said to him, “O man of God, please let my life and the lives of your servants, these fifty, be precious in your sight.

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