1 Corinthians 14:4

14:4 The one who speaks in a tongue builds himself up, but the one who prophesies builds up the church.

1 Corinthians 14:12

14:12 It is the same with you. Since you are eager for manifestations of the Spirit, seek to abound in order to strengthen the church.

1 Corinthians 14:26

Church Order

14:26 What should you do then, brothers and sisters? When you come together, each one has a song, has a lesson, has a revelation, has a tongue, has an interpretation. Let all these things be done for the strengthening of the church.