The Christian’s salvation is securely founded on historical facts and truths of God. We are justified by faith alone in Christ alone by God’s grace alone. These gospel truths give us solid ground to stand upon and a bulletproof defense against Satan’s attacks. Lloyd-Jones explains this well in his comments on Romans 8:33-34.
“How important it is to understand the doctrine of justification by faith only! There is no type of Christian who is so utterly foolish as the one who says, ‘I am not interested in doctrine; I have my experience.’ It is only as you understand the doctrine of justification by faith that you will have security and safety and joy. Doctrine is essential.”
“Have you realized the meaning of justification? You are not merely pardoned and forgiven; you are declared by God to be just in his sight. This is a matter of status, a matter of standing. There is no going back and forth from being justified to not being justified, and then being justified again. God has done this one and for ever, and the Law is ended as far as you are concerned. ‘Christ is the end of the law for righteousness to everyone that believeth.’ (Romans 10:4). That is the complete answer to any charge that can ever be brought against us. It is the only answer. If you rely on anything else the devil will soon shake you. There is only one answer to give him, and it is, ‘God himself has justified me, so all you say is a lie.”
“This, then, is the way to meet the devil and his accusations. If you begin to listen to the devil and say to yourself, ‘Well, after all, he is right; I did sin yesterday and I am not as good as I ought to be,’ you will soon be feeling under condemnation again because you have brought in works once more. You should rather say, ‘I know I am unworthy, I know I am sinful; no one knows how bad I am, but God has justified me in Christ. I do not rely upon myself; I am relying utterly, only, absolutely upon the Lord Jesus Christ and upon what he has done on my behalf, and upon God’s declaration with respect to me.’”
“Stand on justification by faith only. It is the only ground on which you can stand. We must learn to do this; it is the final answer to the devil. ‘It is God who justifieth.’”
covenant presbyterian church (OPC)