If we believe not, yet he abideth faithful - This cannot mean that, if we live in sin, he will certainly save us, as if he had made any promise to the elect, or formed any purpose that he would save them; whatever might be their conduct; because:

(1) he had just said that if we deny him he will deny us; and,

(2) there is no such promise in the Bible, and no such purpose has been formed. The promise is, that be that is a believer shall be saved, and there is no purpose to save any but such as lead holy lives. The meaning must be, that if we are unbelieving and unfaithful, Christ will remain true to his word, and we cannot hope to be saved. The object of the apostle evidently is, to excite Timothy to fidelity in the performance of duty, and to encourage him to bear trials, by the assurance that we cannot hope to escape if we are not faithful to the cause of the Saviour. This interpretation accords with the design which he had in view.

He cannot deny himself - Implying that it would be a denial of his very nature to save those who are unfaithful. He is holy; and how can he save one who is unholy? His very nature is purity; and how can he save one who has no purity? Let no one, then, suppose that, because he is elected, he is safe, if he lives in sin. The electing purpose of God, indeed, makes salvation sure; but it is only for those who lead righteous lives. Nothing would be mere dishonorable for God than to resolve to save a man that lived habitually in sin; and if that were the doctrine of election, it would deserve all the opprobrium that has ever been heaped upon it.

If we believe not - Should we deny the faith and apostatize, he is the same, as true to his threatenings as to his promises; he cannot deny - act contrary to, himself.

If we believe not, yet he abideth faithful,.... The Syriac and Ethiopic versions read, "if we believe not him". This may be understood, either of such who are altogether destitute of faith, who do not believe in Christ at all; and particularly do not believe what was just now said concerning his denying such that deny him, but mock and scoff at his coming, and at a future judgment: this unbelief of theirs will not make void his faith or faithfulness; see Romans 3:3, he will abide faithful to his word of threatening; and what he says in Mark 16:16 will be found to be an everlasting truth: or it may be understood of true believers, whose faith sometimes is very low, as to its exercise on Christ, and with reference to their future glory and happiness; but Christ is faithful to all his, covenant engagements for them, to bring them to glory, and to every word of promise concerning their happiness, and to every branch of the faithful saying above mentioned; and he is ever the same in his love to them, and in the efficacy of his blood, righteousness, and sacrifice; and his salvation is an everlasting and unchangeable one; nor do the saints' interest in it, and security by it, depend upon their acts of believing, or their frames, but upon the firmness and unchangeableness of Christ, the object of faith.

He cannot deny himself; he cannot go contrary to his word; that would be to act contrary to his nature and perfections, and would be a denying of himself, which is not possible; wherefore his faithfulness will never fail, even though, the faith of his people does, as to the exercise of it.

If we believe not (εἰ ἀπιστοῦμεν)

Better, are faithless or untrue to him. Comp. Romans 3:3. In Pastorals only here.

Faithful (πιστὸς)

True to his own nature, righteous character, and requirements, according to which he cannot accept as faithful one who has proved untrue to him. To do this would be to deny himself.

If we believe not, yet he abideth faithful: he cannot deny himself.

2:13 If we believe not, yet he abideth faithful. If we prove faithless, he will still be faithful to keep every promise he has made.

2:13 If we believe not - That is, though some believe not, God will make good all his promises to them that do believe. He cannot deny himself - His word cannot fail.

13. believe not-"If we are unbelievers (literally, 'unfaithful'), He remains faithful" (De 7:9, 10). The oldest manuscripts read, "For He cannot (it is an impossibility that He should) deny Himself." He cannot be unfaithful to His word that He will deny those who deny Him, though we be not faithful to our profession of faith in Him (Ro 3:3). Three things are impossible to God, to die, to lie, and to be deceived [Augustine, The Creed, 1.1], (Heb 6:18). This impossibility is not one of infirmity, but of infinite power and majesty. Also, indirectly, comfort is suggested to believers, that He is faithful to His promises to them; at the same time that apostates are shaken out of their self-deceiving fancy, that because they change, Christ similarly may change. A warning to Timothy to be steadfast in the faith.

2:8-13 Let suffering saints remember, and look to Jesus, the Author and Finisher of their faith, who for the joy that was set before him, endured the cross, despised the shame, and is now set down at the right hand of the throne of God. We must not think it strange if the best men meet with the worst treatment; but this is cheering, that the word of God is not bound. Here we see the real and true cause of the apostle's suffering trouble in, or for, the sake of the gospel. If we are dead to this world, its pleasures, profits, and honours, we shall be for ever with Christ in a better world. He is faithful to his threatenings, and faithful to his promises. This truth makes sure the unbeliever's condemnation, and the believer's salvation.