John of Damascus — on Isa 1:18 (BARLAAM AND JOSEPH 32)

“Such therefore being the promises made by God to them that turn to him, don't delay … but draw near to Christ, our loving God, and be enlightened, and your face shall not be ashamed. For as soon as you go down into the bath of holy baptism, all the defilement of the old nature and all the burden of your many sins are buried in the water and pass into nothingness. And you come up from there a new person, pure from all pollution, with no spot or wrinkle of sin upon you.”