2:19 For I through the law am dead to the {t} law, that I might live unto God.
(t) The Law that terrifies the conscience brings us to Christ, and he alone causes us to indeed die to the Law, because by making us righteous, he takes away from us the terror of conscience. And by sanctifying us, he causes the mortifying of lust in us, so that it cannot take such occasion to sin by the restraint which the Law makes, as it did before; Ro 7:10-11.
2:19 For I through the law am dead to the law. Compare and see notes on Ro 7:4-6 Col 2:20. When the knowledge of Christ came, and he saw his faulty obedience to the law, he realized that he was dead in sin, slain by the law.
That I might live unto God. But having died, he was freed from the law, when he became a new creature in Christ.
2:19 For I through the law - Applied by the Spirit to my heart, and deeply convincing me of my utter sinfulness and helplessness. Am dead to the law - To all hope of justification from it. That I may live to God - Not continue in sin. For this very end am I, in this sense, freed from the law, that I may be freed from sin.
2:15-19 Paul, having thus shown he was not inferior to any apostle, not to Peter himself, speaks of the great foundation doctrine of the gospel. For what did we believe in Christ? Was it not that we might be justified by the faith of Christ? If so, is it not foolish to go back to the law, and to expect to be justified by the merit of moral works, or sacrifices, or ceremonies? The occasion of this declaration doubtless arose from the ceremonial law; but the argument is quite as strong against all dependence upon the works of the moral law, as respects justification. To give the greater weight to this, it is added, But if, while we seek to be justified by Christ, we ourselves also are found sinners, is Christ the minister of sin? This would be very dishonourable to Christ, and also very hurtful to them. By considering the law itself, he saw that justification was not to be expected by the works of it, and that there was now no further need of the sacrifices and cleansings of it, since they were done away in Christ, by his offering up himself a sacrifice for us. He did not hope or fear any thing from it; any more than a dead man from enemies. But the effect was not a careless, lawless life. It was necessary, that he might live to God, and be devoted to him through the motives and grace of the gospel. It is no new prejudice, though a most unjust one, that the doctrine of justification by faith alone, tends to encourage people in sin. Not so, for to take occasion from free grace, or the doctrine of it, to live in sin, is to try to make Christ the minister of sin, at any thought of which all Christian hearts would shudder.