Apostol § 83

Brethren, he is not a Jew who is one outwardly, nor is true circumcision [something which] is outward and in the flesh; but he is a Jew who is one inwardly, and [true] circumcision is that of the heart, in the Spirit, and not in the letter. His praise is not from men but from God... What advantage then has the Jew, or what is the profit of circumcision? Much in every way! Chiefly because to them were committed the oracles of God. For what if some did not believe? Will their unbelief make the faithfulness of God without effect? Certainly not! Indeed, let God be true but every man a liar. As it is written: “That Thou mayest be justified in Thy sayings, and mightest overcome when Thou art judged.” But if our unrighteousness demonstrates the righteousness of God, what shall we say? That God is unjust to inflict wrath upon us? (I speak as a man.) Certainly not! For then how will God judge the world? For if the truth of God has increased through my lie to His glory, why am I also still judged as a sinner? And why not say, “Let us do evil that good may come?”—as some slanderously report and affirm that we say. Their condemnation is just. What then? Are we better than they? No, not at all. For I have already charged that all men, both Jews and Gentiles, are under [the power of] sin. As it is written: “There is none righteous, no, not one; there is none that understands; there is none that seeks after God. They are all gone out of the way; they are together become unprofitable; there is none that does good, no, not one. Their throat is an open grave; with their tongues they have used deceit; the poison of asps is under their lips; whose mouth is full of cursing and bitterness. Their feet are swift to shed blood; destruction and misery are in their ways; and the way of peace have they not known. There is no fear of God before their eyes.”