He that hath clean hands shall become stronger and stronger... -Job 17:9
...cleanse your hands, ye sinners... -James 4:8
Who may stand in His holy place? He who has clean hands and a pure heart... -Psalm 24:3-4
That's right folks. It's right there in the ol' ancient texts themselves. All that peace of mind for less than tree-fiddy. Hallelujah. Now go in peace.