'Mission' in the Bible

We are not overstepping the limits of our province, as if we did not [legitimately] reach to you, for we were the [very] first to come even as far as you with the good news of Christ.

But what I am doing I will keep doing, [for I am determined to keep this independence] in order to cut off the claim of those who want an opportunity to be regarded just as we are in the things they brag about.