New King James Version (NKJV)
2 Corinthians 10
15 not boasting of things beyond measure, that is, in other men’s labors, but having hope, that as your faith is increased, we shall be greatly enlarged by you in our sphere,
16 to preach the gospel in the regions beyond you, and not to boast in another man’s sphere of accomplishment.
17 But "he who glories, let him glory in the Lord."
18 For not he who commends himself is approved, but whom the Lord commends.
2 Corinthians 11
1 Oh, that you would bear with me in a little folly--and indeed you do bear with me.
2 For I am jealous for you with godly jealousy. For I have betrothed you to one husband, that I may present you as a chaste virgin to Christ.
3 But I fear, lest somehow, as the serpent deceived Eve by his craftiness, so your minds may be corrupted from the simplicity that is in Christ.
4 For if he who comes preaches another Jesus whom we have not preached, or if you receive a different spirit which you have not received, or a different gospel which you have not accepted--you may well put up with it!
5 For I consider that I am not at all inferior to the most eminent apostles.
6 Even though I am untrained in speech, yet I am not in knowledge. But we have been thoroughly manifested among you in all things.
7 Did I commit sin in humbling myself that you might be exalted, because I preached the gospel of God to you free of charge?