15. not 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
16. to announce the glad tidings to that which is beyond you, not to be boasting in another's rule of things made ready to hand.
17. But he that boasts, let him boast in the Lord.
18. For not he that commends himself is approved, but whom the Lord commends.