1 Now the Spirit expressly says that in latter times some will depart from the faith, giving heed to deceiving spirits and doctrines of demons, 2 speaking lies in hypocrisy, having their own conscience seared with a hot iron, 3 forbidding to marry, and commanding to abstain from foods which God created to be received with thanksgiving by those who believe and know the truth. (1 Timothy 4:1–3, NKJV)
In sharp contrast to Calvinism’s “perseverance of the saints” doctrine (a.k.a. “once saved, always saved” and the impossibility of apostasy), the Spirit of God explicitly says some Christians would “depart from the faith” (v. 1). One cannot depart from that of which he was never a part. They would depart “the faith” – the gospel revealed by Christ and preached by His apostles (Gal. 1:11-12, 23). Jesus described those who “in time of temptation fall away” (Lk. 8:13). Paul warned those who had “fallen from grace” (Gal. 5:4). He also spoke of “the falling away” to console those who thought Christ was soon to appear (2 Thess. 2:3). Why reject this obvious Bible truth? It has nothing to do with God’s ability to save, and everything to do with our faith. We must hear and follow the word of Jesus to be secure in Him (Jno. 10:27-30; Heb. 5:8-9; Matt. 7:21-23). False doctrines (like once saved, always saved) deceive people of their security when they are in spiritual danger. Error sears consciences to prevent us from believing and receiving the truth (v. 3). You can know whether you have departed from the faith by comparing yourself to the truth. We are secure in Christ when we believe and walk in the faith.
15 But if the unbeliever departs, let him depart; a brother or a sister is not under bondage in such cases. But God has called us to peace. 16 For how do you know, O wife, whether you will save your husband? Or how do you know, O husband, whether you will save your wife? (1 Corinthians 7:15–16, NKJV)
What if the unbelieving spouse of verses 12-13 is unwilling to be married to a Christian? What if the unbeliever is not willing to accept the trials brought upon the home by the Christian’s faith (1 Cor. 7:26)? Should the Christian yield to the will of the unbelieving spouse and sacrifice faith for the sake of a peaceful marriage? No. We must obey God rather than any person, including a spouse (Acts 5:29). Verse 15 does not give another cause for divorce and remarriage (even though many use it to justify desertion as a cause for divorce and remarriage). Remarriage is not even in this passage. (The married have already been warned against divorce in verses 10-11.) Here, Paul affirms the Christian is not now and never has been in bondage to (a slave to) the unbeliever. God has called us to peace, but not by compromising one’s faith. The unbeliever who demands the believer abandon faith for peace in the marriage demands a price for peace that cannot be paid. If that demand occurs, then “let him (the unbeliever) depart.” You cannot yield your faith and become a slave of men (1 Cor. 7:23). Do you think the unbeliever will be saved by yielding your faith? Resolute faith influences an unbelieving spouse toward salvation (1 Peter 3:1-2).
15 Be diligent to present yourself approved to God, a worker who does not need to be ashamed, rightly dividing the word of truth. 16 But shun profane and idle babblings, for they will increase to more ungodliness. 17 And their message will spread like cancer. Hymenaeus and Philetus are of this sort, 18 who have strayed concerning the truth, saying that the resurrection is already past; and they overthrow the faith of some. 19 Nevertheless the solid foundation of God stands, having this seal: “The Lord knows those who are His,” and, “Let everyone who names the name of Christ depart from iniquity.” (2 Timothy 2:15-19)
The Lord “knows those who are His”; they are approved before Him (verse 19, 15). We must present ourselves “approved to God” by properly handling God word to avoid error and to depart iniquity. Hymenaeus and Philetus failed to do so. They strayed from the truth and overthrew the faith of others with their error. It matters what we believe, teach and practice! If it does not, then why this warning? Clearly, here are Christians who lost their souls – not because God cannot save, but because they “strayed concerning the truth” (cf. Isaiah 59:1-2). Beware, lest you fall (1 Cor. 10:12).