'Knees' in the Bible

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."

When Simon Peter saw this, he fell down at Jesus' knees and said, "Leave me, Lord! I am a sinful man!" -

This is the reason I bow my knees before the Father of our Lord Jesus, the Messiah,

And so, when Jesus' name is called, the knees of everyone should fall, wherever they're residing.

Therefore, strengthen your tired arms and your weak knees,