'Knee' in the Bible

Every hand will be limp. Every knee will glisten with sweat."

And when they ask you, ‘Why are you groaning?’ then say: Because of the news that is coming. Every heart will melt, and every hand will become weak. Every spirit will be discouraged, and every knee will turn to water. Yes, it is coming and it will happen.” This is the declaration of the Lord God.

Again he measured 1,750 feet and led me through the water, which was now knee deep. Once more he measured 1,750 feet and led me through the water, which was waist deep.