The key word "Therefore"(Gr. hoste) and the repetition of "stand firm"(cf. 1:27) point to a conclusion of the main subject. This verse begins the rather protracted conclusion of the letter. The apostle did not want his readers to lose their balance and tumble spiritually because of bad influences. Instead he wanted them to adopt the mind of Christ as he had and so continue with him in the partnership of the gospel.
Paul's strong affection for the Philippian Christians comes through very clearly in this verse. He called them "brethren"four times (1:12; 3:1, 17; 4:8), "beloved"twice (2:12 and here), and "beloved brethren"once (here). Again he affirmed his desire to visit Philippi and see them again (cf. 1:8; 2:24). Moreover he referred to them as his present source of joy and his future crown when he would stand before the judgment seat of Christ. He would receive a reward for establishing them in the faith.144
In this section on walking steadfastly (3:1-4:1) Paul urged his readers to rejoice in the Lord and warned them about false teaching of two kinds that would limit their joy. On the one hand, there was teaching from Judaizers, some of whom may have been Christians but most of whom were probably not. These false teachers wanted to limit the Philippians' legitimate liberty by persuading them to submit to laws that God did not intend to govern them. On the other hand, there were antinomians, many of whom seem to have been believers but some of whom may not have been. They were urging the abandonment of legitimate law and were advocating self-indulgence. Paul's example in the middle section of chapter 3 (vv. 4b-16) provides a path that leads us safely between these extremes.
Standing firm involves living in harmony with one another (vv. 2-3), rejoicing on all occasions (vv. 4-7), and developing the quality of sweet reasonableness (vv. 8-9). This is clear because three imperatives in the Greek text explain "so stand firm"or "stand firm thus"(Gr. houtos).
