Tertullian

Therefore this man also, who in buying himself has bought the Spirit of Christ, will hear that word, "Your money perish with you, since you have thought that the grace of God is to be had at a price!" Yet who will despise him for being (what he is), a denier? For what says that extorter? Give me money: assuredly that he may not deliver him up, since he tries to sell you nothing else than that which he is going to give you for money.