1Finally, brothers, pray for us, that the word of the Lord may spread rapidly and be glorified, even as also with you, 2and that we may be delivered from unreasonable and evil men; for not all have faith. 3But the Lord is faithful, who will establish you and guard you from the evil one. 4We have confidence in the Lord concerning you, that you both do and will do the things we command. 5May the Lord direct your hearts into God’s love and into the perseverance of Christ.
6Now we command you, brothers, in the name of our Lord Jesus Christ, that you withdraw yourselves from every brother who walks in rebellion and not after the tradition which they received from us. 7For you know how you ought to imitate us. For we didn’t behave ourselves rebelliously among you, 8neither did we eat bread from anyone’s hand without paying for it, but in labor and travail worked night and day, that we might not burden any of you. 9This was not because we don’t have the right, but to make ourselves an example to you, that you should imitate us. 10For even when we were with you, we commanded you this: “If anyone is not willing to work, don’t let him eat.” 11For we hear of some who walk among you in rebellion, who don’t work at all, but are busybodies. 12Now those who are that way, we command and exhort in the Lord Jesus Christ, that they work with quietness and eat their own bread.
13But you, brothers, don’t be weary in doing what is right. 14If any man doesn’t obey our word in this letter, note that man and have no company with him, to the end that he may be ashamed. 15Don’t count him as an enemy, but admonish him as a brother.
16Now may the Lord of peace himself give you peace at all times in all ways. The Lord be with you all.
17I, Paul, write this greeting with my own hand, which is the sign in every letter. This is how I write. 18The grace of our Lord Jesus Christ be with you all. Amen.
Faith (Gk. πίστις, pistis). (2:8; Matt 8:10; 9:2, 21:21, Mark 2:5, 11:22, Luke 7:9, 18:42, Acts 11:24, 24:24; Rom 3:22, 25, 12:3; 1Cor 13:2, 2Cor 5:7, 13:5, Gal 1:23, 5:6, Eph 4:13, Phil 3:9, Col 2:5, 1Thess 1:3, 2Thess 3:2, 1 Tim 3:9, 6:12, 2 Tim 2:18, 4:7, Tit 2:2, Phlm 5, Heb 6:1, 11:6; James 2:14, 1Pet 5:9, 2 Pet 1:5, Jn 5:4, Jude 3, Rev 2:19, 14:12) Strong’s 4102
This word, very common in the NT (243 times), can mean, 1) that which evokes faith, “faithful,” 2) “trust, confidence, faith,” 3) “body of faith, teaching.” It is a noun of action—related to the cognate verb πιστεύω (pisteuo) to “believe. It is hard to overstate the importance of this word to Christian theology, since relationship between humans and God is always dependent on faith. This verse uses the word in the second sense of “trust, confidence, faith.” Here, the reference is to saving faith, which amounts to trust in the person of Jesus (God—John 1:12; Eph 1:15) and the message of the Gospel (Jesus’ death and resurrection—1 Cor 15:1-5). Saving faith depends on knowing certain information, but also necessarily goes beyond believing these things to be true, to placing personal confidence and trust in what and who is known. In this verse, grace is the cause of salvation; faith is the means.