6 Bible Verses about Testing Spirits

Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets have gone out into the world.

To another, the working of miracles; to another, prophecy; to another, discerning of spirits; to another, divers kinds of languages; to another, the interpretation of languages:

By this ye know the Spirit of God: Every spirit that confesseth that Jesus Christ hath come in the flesh, is from God: And every spirit that confesseth not that Jesus Christ is come in the flesh, is not from God. And this is that spirit of antichrist, of which ye have heard that it should come; and even now already it is in the world. Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world.read more.
They are of the world: therefore they speak from the world, and the world heareth them. We are of God. He that knoweth God, heareth us; he that is not of God, heareth not us. By this we know the spirit of truth, and the spirit of error.

These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so.

Prove all things; hold fast that which is good.

And that from a child thou hast known the sacred scriptures, which are able to make thee wise to salvation through faith which is in Christ Jesus. All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: That the man of God may be perfect, thoroughly furnished to all good works.