12 So it is with you. Since you are eager for gifts of the Spirit, try to excel in those that build up the church. 13 For this reason the one who speaks in a tongue should pray that they may interpret what they say.
12 So with yourselves, since you are eager for manifestations of the Spirit, strive to excel in building up the church. 13 Therefore, one who speaks in a tongue should pray for the power to interpret.
12 It's no different with you. Since you're so eager to participate in what God is doing, why don't you concentrate on doing what helps everyone in the church? 13 So, when you pray in your private prayer language, don't hoard the experience for yourself. Pray for the insight and ability to bring others into that intimacy.
12 Even so you, since you are zealous for spiritual gifts, let it be for the edification of the church that you seek to excel. 13 Therefore let him who speaks in a tongue pray that he may interpret.
12 And the same is true for you. Since you are so eager to have the special abilities the Spirit gives, seek those that will strengthen the whole church. 13 So anyone who speaks in tongues should pray also for the ability to interpret what has been said.
Matthew Henry's Commentary on 1 Corinthians 14:12-13
Commentary on 1 Corinthians 14:6-14
(Read 1 Corinthians 14:6-14)
Even an apostle could not edify, unless he spoke so as to be understood by his hearers. To speak words that have no meaning to those who hear them, is but speaking into the air. That cannot answer the end of speaking, which has no meaning; in this case, speaker and hearers are barbarians to each other. All religious services should be so performed in Christian assemblies, that all may join in, and profit by them. Language plain and easy to be understood, is the most proper for public worship, and other religious exercises. Every true follower of Christ will rather desire to do good to others, than to get a name for learning or fine speaking.