In your vauntings (en tai alazoniai umwn). Old word for braggart talk (from alazoneuomai, to act the alazwn empty boaster Romans 1:30 ), common in Aristophanes, in N.T. only here and 1 John 2:16 . Glorying (kauchsi). Act of glorying, late word from kaucaomai, good if for Christ ( 1 Thessalonians 2:19 ), bad if for self as here.