'Fell on His Knees' in the Bible

Then the king tried yet again! The king sent a third company of 50 soldiers along with their leader. The third leader went up the hill, approached Elijah, fell on his knees in front of him, and begged him, "Hey, man of God, please treat my life and the lives of these servants of yours as precious!

Then a leper came to Jesus and began pleading with him. He fell on his knees and told him, "If you want to, you can make me clean."