2 Corinthians 10:14-18

14For we do not, as not reaching to you, overstretch ourselves, (for we have come to you also in the glad tidings of the Christ;) 15not boasting out of measure in other people's labours, but having hope, your faith increasing, to be enlarged amongst you, according to our rule, yet more abundantly 16to announce the glad tidings to that [which is] beyond you, not to be boasting in another's rule of things made ready to hand. 17But he that boasts, let him boast in the Lord. 18For not he that commends himself is approved, but whom the Lord commends.