2 Corinthians 10:18 YLT

¹⁶  in the 'places' beyond you to proclaim good news, not in another's line in regard to the things made ready, to boast;

¹⁷  and he who is boasting -- in the Lord let him boast;

¹⁸  for not he who is commending himself is approved, but he whom the Lord doth commend.