What does 2 Thessalonians 2:15 mean?
Paul connects God's call to salvation and the believers' future glory to the obligation his readers have to stick with the truth. Many false teachers were trying to pull the believers away from the truth, and persecution and trials were buffeting them; so Paul urges his readers to hold their ground against the false teachers' influence. He also urges his readers to keep a firm grip on the teachings they had received from him, whether he had given them when he was in Thessalonica or communicated them by letter. The New Testament often warns against drifting from the truth towards some different, false belief (Galatians 1:8–9; 1 Corinthians 4:6).It is possible to slip back from a position of love for God and His Word. The risen Savior rebuked the church at Ephesus for having abandoned the love it had at first (Revelation 2:4). He admonished the church to "remember therefore from where you have fallen; repent, and do the works you did at first" (Revelation 2:5). We must constantly love the God of the Word and the Word of God.