Jamieson, Fausset & Brown

utterance--ALFORD from MENOCHIUS translates, "doctrine." Ye are rich in preachers or the preaching of the word, and rich in knowledge or apprehension of it: literally "(the) word (preached)." English Version (as in Co2 8:7) is better: for Paul, purposing presently to dwell on the abuse of the two gifts on which the Corinthians most prided themselves, utterance (speech) and knowledge (Co1 1:20; Co1 3:18; Co1 4:19; 1Co. 13:1-14:40), previously gains their goodwill by congratulating them on having those gifts.