1 John 4:1 (WEB) - 1 Beloved, don’t believe every spirit, but test the spirits, whether they are of God, because many false prophets have gone out into the world.
1 John 4:3 (WEB) - 3 and every spirit who doesn’t confess that Jesus Christ has come in the flesh is not of God, and this is the spirit of the Antichrist, of whom you have heard that it comes. Now it is in the world already.
6 We are of God. He who knows God listens to us. He who is not of God doesn’t listen to us. By this we know the spirit of truth, and the spirit of error.
1 John 4:16 (WEB)
We know and have believed the love which God has for us. God Is Love, and he who remains in love remains in God, and God remains in him..
1 John 4:17, 17 In this, love has been made perfect among us, that we may have boldness in the day of judgment, because as he is, even so we are in this world. - WEB