'Clean Hands' in the Bible

Didn’t he himself say to me, ‘She is my sister’? And she herself said, ‘He is my brother.’ I did this with a clear conscience and clean hands.”

The righteous also shall hold on his way, and he that hath clean hands shall be stronger and stronger.

He that hath clean hands, and a pure heart; who hath not lifted up his soul unto vanity, nor sworn deceitfully.

They noticed that some of his disciples were eating with unclean hands, that is, without washing them.

And the Pharisees and the scribes asked him, "Why do your disciples not live according to the tradition of the elders, but eat their bread with unclean hands?"