Little children, it is the last time: and as you have heard that antichrist shall come, even now are there many antichrists; by which we know that it is the last time.
All Commentaries on 1 John 2:18 Go To 1 John 2
Irenaeus of Lyons
AD 202
Know ye therefore, that every lie is from without, and is not of the truth. Who is a liar, but he that denieth that Jesus is the Christ? This is Antichrist.".
foreseeing by the Spirit those weak-minded persons who should be led astray.