But we will not boast of things without our measure, but according to the measure of the rule which God hath distributed to us, a measure to reach even unto you. For we stretch not ourselves beyond our measure, as though we reached not unto you: for we are come as far as to you also in preaching the gospel of Christ: Not boasting of things without our measure, that is, of other men’s labours; but having hope, when your faith is increased, that we shall be enlarged by you according to our rule abundantly, To preach the gospel in the regions beyond you, and not to boast in another man’s line of things made ready to our hand. But he that glorieth, let him glory in the Lord. For not he that commendeth himself is approved, but whom the Lord commendeth. ~ 2 Corinthians 10:13-18 KJV

We, on the other hand, will not boast beyond our legitimate province and proper limit, but will keep within the limits [of our commission which] God has allotted us as our measuring line and which reaches and includes even you. For we are not overstepping the limits of our province and stretching beyond our ability to reach, as though we reached not (had no legitimate mission) to you, for we were [the very first] to come even as far as to you with the good news (the Gospel) of Christ. We do not boast therefore, beyond our proper limit, over other men’s labors, but we have the hope and confident expectation that as your faith continues to grow, our field among you may be greatly enlarged, still within the limits of our commission, So that [we may even] preach the Gospel in lands [lying] beyond you, without making a boast of work already done in another [man’s] sphere of activity [before we came on the scene]. However, let him who boasts and glories boast and glory in the Lord. [Jer. 9:24.] For [it is] not [the man] who praises and commends himself who is approved and accepted, but [it is the person] whom the Lord accredits and commends. ~ 2 Corinthians 10:13-18 AMP