'Knees' in the Bible

So he took the people down to the water; and the Lord said to Gideon, Put on one side by themselves all those drinking up the water with their tongues like a dog; and in the same way, all those who go down on their knees to the water while drinking.

Now the number of those who took up the water with their tongues was three hundred; all the rest of the people went down on their knees to the water.

And she made him go to sleep on her knees; and she sent for a man and had his seven twists of hair cut off; and while it was being done he became feeble and his strength went from him.