Now this I say and testify in the Lord, that you must no longer walk as the Gentiles do, in the futility of their minds.
17. This I say therefore. That government which Christ has appointed for the edification of his church has now been considered. He next inquires what fruits the doctrine of the gospel ought to yield in the lives of Christians; or, if you prefer it, he begins to explain minutely the nature of that edification by which doctrine ought to be followed. That ye henceforth walk not in vanity.
The apostle having gone through his exhortation to mutual love, unity, and concord, in the foregoing verses, there follows in these an exhortation to Christian purity and holiness of heart and life, and that both more general (Eph 4:17-24) and in several particular instances, Eph 4:25-32.
Commenting on Ephesians 4:17-32
This I say therefore and testify in the Lord,.... These words may be considered either as an assertion, and so a testimonial of the different walk and conversation of the saints at Ephesus, from the rest of the Gentiles; or as an exhortation in the name of the Lord to such a walk, the apostle here returning to what he stirs them up to in...