'Test' in the Bible

Dear friends, do not believe every spirit, but test the spirits to determine if they are from God, because many false prophets have gone out into the world.

The test by which you may recognize the Spirit of God is that every spirit which acknowledges that Jesus Christ has come as man is from God,

The man who is beginning to know God listens to us, but he who is not a child of God does not listen to us. By this test we can distinguish the Spirit of truth from the spirit of error.