That they strive not about words (mh logomacein). Word apparently coined by Paul from logomacia ( 1 Timothy 6:4 which see), a back formation in that case. A mere war of words displeases Paul. ( Titus 3:9 ). Useful (crhsimon). Late and rare word from craomai, here only in N.T. To the subverting (epi katastroph). Old word (from katastrepw, to turn down or over), here only in N.T. (except 2 Peter 2:6 in some MSS., not in Westcott and Hort)." Because of the overthrow" (result epi, not aim), useless for this reason. Such war of words merely upsets the hearers.