Anyone Who Opposes Christ Are Called An Antichrist and a False Christ

Anyone Who Opposes Christ
Called an Antichrist (I John 2:18,22; I John 4:3 and 2 John 7)
Called a False Christ (Matthew 24:34 and Mark 13:22)

Called An Antichrist
I John 2:18, 22
18  Dear children, the last hour is here. You have heard that the Antichrist is coming, and already many such antichrists have appeared. From this we know that the last hour has come.
22  And who is a liar? Anyone who says that Jesus is not the Christ. Anyone who denies the Father and the Son is an antichrist.

I John 4:3
3   But if someone claims to be a prophet and does not acknowledge the truth about Jesus, that person is not from God. Such a person has the spirit of the Antichrist, which you heard is coming into the world and indeed is already here.

2 John 7
7    I say this because many deceivers have gone out into the world. They deny that Jesus Christ came in a real body. Such a person is a deceiver and an antichrist.

Called A False Christ (Matthew 24:24 and Mark 13:22)
Matthew 24:24
24  For false messiahs and false prophets will rise up and perform great signs and wonders so as to deceive, if possible, even God’s chosen ones.

Mark 13:22
22  For false messiahs and false prophets will rise up and perform signs and wonders so as to deceive, if possible, even God’s chosen ones.