Mutual edification is the hallmark of corporate worship

Certainly it is true that mutual edification is the hallmark of corporate worship . …And edification must not be understood to be merely the cognitive reception of biblical truth through preaching. Of course, it is true that mutual edification takes place through preaching. But congregational singing, sitting together under the Word as it is read, contemplating god’s Word sung, uniting in Word-centered congregational prayer, corporately confessing our faith, and rebuke and exhortation — all these edify.

~ Kent Hughes in Worship by the Book, 141