Cross reference
1 Corinthians 14:29
29 And let the prophets speak `by' two or three, and let the others discern.
1 Corinthians 12:10
10 and to another workings of miracles; and to another prophecy; and to another discernings of spirits; to another `divers' kinds of tongues; and to another the interpretation of tongues:
1 Thessalonians 5:19-21
19 Quench not the Spirit;
20 despise not prophesyings;
21 prove all things; hold fast that which is good;
1 John 4:1-3
1 Beloved, believe not every spirit, but prove the spirits, whether they are of God; because many false prophets are gone out into the world.
2 Hereby know ye the Spirit of God: every spirit that confesseth that Jesus Christ is come in the flesh is of God:
3 and every spirit that confesseth not Jesus is not of God: and this is the `spirit' of the antichrist, whereof ye have heard that it cometh; and now it is in the world already.
1 Corinthians 14:39
39 Wherefore, my brethren, desire earnestly to prophesy, and forbid not to speak with tongues.