6 Bible Verses about Testing Spirits

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

To another the working of miracles; to another prophecy; to another discerning of spirits; to another various kinds of tongues; to another the interpretation of tongues:

By this you know the Spirit of God: Every spirit that confesses that Jesus Christ is come in the flesh is of God: And every spirit that confesses not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, of which you have heard that it should come; and even now already is it in the world. You 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 of the world, and the world hears them. We are of God: he that knows God hears us; he that is not of God hears 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.

Test all things; hold fast that which is good.

And that from a child you have known the holy scriptures, which are able to make you wise unto 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 unto all good works.