35 Therefore do not cast away your confidence, which has great reward. 36 For you have need of endurance, so that after you have done the will of God, you may receive the promise: 37 “For yet a little while, and He who is coming will come and will not tarry. 38 Now the just shall live by faith; But if anyone draws back, My soul has no pleasure in him.” 39 But we are not of those who draw back to perdition, but of those who believe to the saving of the soul. (Hebrews 10:35–39, NKJV)
This passage presents a substantial problem for those who believe the “once saved, always saved” doctrine. Christians are urged to have endurance to “receive the promise.” Without a faith that endures, they would cast away their confidence and “draw back to perdition” (destruction). This is a far cry from comforting souls in sin that they cannot lose their salvation. This passage also confounds those who trust in the “faith only” doctrine. It points out the promise of life is not received until after “you have done the will of God.” Faith that saves the soul endures by continuing to do the will of God. Faith endures the struggles of suffering that come with following Jesus (Heb. 10:32-34). Enduring faith gives life (v. 37), it pleases God (v. 38), and it saves the soul (v. 39). “Indeed we count them blessed who endure” (Jas. 5:11).
27 Only let your conduct be worthy of the gospel of Christ, so that whether I come and see you or am absent, I may hear of your affairs, that you stand fast in one spirit, with one mind striving together for the faith of the gospel, 28 and not in any way terrified by your adversaries, which is to them a proof of perdition, but to you of salvation, and that from God. (Philippians 1:27–28, NKJV)
Would you change your conduct if you knew an apostle was coming to see you? What if you knew he would hear about your conduct? Of course, God knows our conduct at all times. So, our lives must always be worthy of the gospel of Christ. Worthy conduct is defined here as “standing fast in one spirit,” as well as “with one mind striving together for the faith of the gospel.” Conduct worthy of the gospel involves faithful steadfastness in the face of spiritual adversity. It also involves our united effort with fellow Christians in contending for the faith (Jude 3). When we are faithful to the gospel of Christ we are not terrified by the opponents of the faith. How can we be confident in the face of adversity? By trusting that God will execute righteous judgment upon every adversary of Christ and His church (Romans 2:5-6). Salvation is sure to those whose conduct is worthy of the gospel. Be sure that describes you today and every day.