1 John 2:8; 1 John 4:3

8 Again, a new commandment I write unto you, which thing is true in him and in you: because the darkness is past, and the true light now shineth.

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.