Tongues, then, are a sign, not for believers, but for unbelievers. Prophecy, however, is for believers, not for unbelievers.
22. Therefore tongues are for a sign This passage may be explained in two ways, by considering the word therefore as referring merely to the preceding sentence, or as having a bearing generally on the whole of the foregoing discussion.
In this passage the apostle pursues the argument, and reasons from other topics; as, I. Tongues, as the Corinthians used them, were rather a token of judgment from God than mercy to any people (Co1 14:21): In the law (that is, the Old Testament) it is written, With men of other tongues and other lips will I speak to this people; and yet for all...
Commenting on 1 Corinthians 14:21-25
If therefore the whole church,.... The whole congregation of believers incorporated together in a Gospel church state, consisting of its officers and private members; the church at Corinth is particularly designed: be come together in one place; to worship God, to pray unto him, sing his praise, preach and hear the word, as were usually done.