This is about testing the spirits so that believers may know the real Holy Spirit from the spirit of the antichrist. 1 John 4:1 Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world. The verse below is still about testing the spirits. The phrase "is come" means presently as to where Jesus Christ is at now. 2 Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God: "That Jesus Christ is come in the flesh" is another way of saying Jesus Christ is in you. Proof of this in testing the spirits may be clearer as we read on. 3 And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world. Verse 3 is testifying that if any one confesses that the "Spirit of Christ" is outside of us in the worship place or anywhere as believers can feel that presence outside of them, that presence is the spirit of the antichrist. 4 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. Now the line of discernment has been drawn as to where the real Holy Spirit is and that is in you as opposing and thus exposing that spirit felt outside of you as being the spirit of the antichrist. That includes feeling the spirit coming over you, filling you up, and giving you tongues that comes with no interpretation when you have been a believer for a while now with the Holy Spirit already in you. There are familiar spirits in the world that brings a supernatural tongue that is just vain and profane babbling nonsense as found in Isaiah 8:19 . Isaiah 8: 19 And when they shall say unto you, Seek unto them that have familiar spirits, and unto wizards that peep, and that mutter: should not a people seek unto their God? for the living to the dead? And so there is necessity not to believe every spirit as being of God, especially when it brings tongues with no interpretation for that supernatural tongues is of the world. 1 John 4:5 They are of the world: therefore speak they of the world, and the world heareth them. 6 We are of God: he that knoweth God heareth us; he that is not of God heareth not us. Hereby know we the spirit of truth, and the spirit of error. Jesus gave us a promise on how we will KNOW the real Spirit of truth from the spirit of error. John 14:16 And I will pray the Father, and he shall give you another Comforter, that he may abide with you for ever; 17 Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you. The days of feeling God's Presence in the Temple or any place else are over. 1 Corinthians 6:19 What? know ye not that your body is the temple of the Holy Ghost which is in you, which ye have of God, and ye are not your own? 20 For ye are bought with a price: therefore glorify God in your body, and in your spirit, which are God's. 2 Corinthians 13:5 Examine yourselves, whether ye be in the faith; prove your own selves. Know ye not your own selves, how that Jesus Christ is in you, except ye be reprobates?