This is the reason that I, Paul, the prisoner of Christ Jesus on behalf of you Gentiles, [pray for you. See 3:14-19].

[Note: Paul here digresses from his prayer, begun in 1:15-16, to explain the circumstances of his being a prisoner on behalf of these Gentiles]. [I assume] you have heard about my commission [to minister] to you, which was given to me by God's unearned favor.

I urge you, therefore, as a prisoner of the Lord, to live in a way that measures up to [the standard required by] God when He called you.

So then, you [Gentiles] are no longer foreigners and aliens [i.e., to God's promises. See verse 12], but you are fellow-citizens with the saints [i.e., God's holy people], and are part of God's family.

This secret plan is that the Gentiles [now] share in the inheritance along with us [Jews], and are fellow-members of the body [i.e., the church], and that they share, along with us [Jews], in the promise of the Gospel, in [fellowship with] Christ Jesus.