Isaiah 1:16-18

16 Wash you, make you clean; put away the evil of your doings from before mine eyes; -- cease to do evil,

17 learn to do well seek judgment, gladden the oppressed, do justice to the fatherless, plead for the widow.

18 Come now, let us reason together, saith Jehovah though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.