WPNT(i)
23 Now this is His commandment, that we believe in the name of His Son, Jesus Christ, and love one another, just as He commanded.
24 He who keeps His commandments abides in Him, and He in him. This is how we know that He remains in us: by the Spirit whom He gave us.
4 1 Dear ones, don’t believe every spirit, but test the spirits, whether they are from God, because many false prophets have gone out into the world.
2 By this the Spirit of God is known: every spirit that acknowledges Jesus Christ as having come in flesh is of God,
3 and every spirit that doesn’t acknowledge Jesus Christ as having come in flesh is not of God; indeed, this is the spirit of the Antichrist, of which you have heard that it is coming—actually, it is already in the world right now.