29 Let the prophets speak, two or three, and let the others discern.
1 Corinthians 14:29 Cross References - WEB
1 Corinthians 12:10
10 and to another workings of miracles; and to another prophecy; and to another discerning of spirits; to another different kinds of languages; and to another the interpretation of languages.
1 Corinthians 14:39
39 Therefore, brothers, desire earnestly to prophesy, and don’t forbid speaking with other languages.
1 Thessalonians 5:19-21
1 John 4:1-3
1 Beloved, don’t believe every spirit, but test the spirits, whether they are of God, because many false prophets have gone out into the world.
2 By this you know the Spirit of God: every spirit who confesses that Jesus Christ has come in the flesh is of God,
3 and every spirit who doesn’t confess that Jesus Christ has come in the flesh is not of God, and this is the spirit of the Antichrist, of whom you have heard that it comes. Now it is in the world already.