2 Corinthians 10:15-18

not glorying beyond our measure, that is, in other men’s labors; but having hope that, as your faith groweth, we shall be magnified in you according to our province unto further abundance, so as to preach the gospel even unto the parts beyond you, and not to glory in another’s province in regard of things 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.