This is how you can recognize the Spirit of God: every spirit that acknowledges that Jesus Christ has come in the flesh is from God, and every spirit that does not acknowledge Jesus is not from God. This is the spirit of the Antichrist, about whose coming you have been told, and that it is already in the world.
So shall my word be that issues forth from my mouth. It will not return to me unfulfilled, but it will accomplish my purpose and achieve what I sent it forth to do.
Do not be conformed to the world, but be transformed by the renewal of your minds, so that you will be able to discern the will of God and to know what is good and acceptable and perfect.