Onely let your conversation be, &c.] See Ephesians 4:1. Colos. 1. 10. 2 Thess. 2. 12. Having ended his Preface, he descendeth now to exhortation; and first of all, he exhorteth to unitie and consent, that being knit together with common bonds, they continue through the strength of faith to bear all adversitie in such sort, that they do nothing unworthy the profession of the Gospel. stand fast in one spirit] It is a metaphor taken from wrestlers, that keep their ground, and shrink not a foot.