'Knees' in the Bible

And a leper came to him and, going down on his knees before him, made a request, saying, If it is your pleasure, you have the power to make me clean.

And while he was going out into the way, a man came running to him, and went down on his knees, saying, Good Master, what have I to do so that I may have eternal life?

And they gave him blows on the head with a stick and put shame on him and, going down on their knees, gave him worship.