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 forth into the world.

to another the working of miracles, to another prophecy, to another discerning of spirits, to another divers kinds of tongues, to another the interpretation of tongues.

Hereby ye know the Spirit of God: Every spirit that acknowledgeth that Jesus Christ hath come in the flesh, is of God. And every spirit that doth not acknowledge Jesus, is not of God; and this is that spirit of Antichrist, of which ye have heard that it is to come, and even now it is already in the world. Ye are of God, my 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 heareth them. We are of God; he that knoweth God heareth us; he that is not of God heareth us not. Hereby know we 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, and searched the Scriptures daily, whether these things were so.

but prove all things; hold fast that which is good;

and that from a child thou hast known the Holy Scriptures, which are able to make thee wise unto salvation, through faith which is in Christ Jesus. All Scripture is inspired by God, and is profitable for teaching, for reproof, for correction, for discipline in righteousness; that the man of God may be perfect, thoroughly furnished unto every good work.