1 John 4:3

And every spirit who confesseth not that Jesus the Messiah is come into the world, is not from God: and this is that spirit of antichrist which ye have heard that it is coming, and now is already in the world.

1 John 2:18

My dear children, it is the last hour; and as ye have heard that antichrist is coming, even now there are many antichrists: by which we know it is the last hour.

1 John 2:22

Who is the liar, but he that denieth that Jesus is the Messiah? This man is the antichrist, who denieth the Father and the Son.

2 John 1:7

For many deceivers are gone out into the world, who do not confess Jesus the Messiah as come in the flesh. Such a one is a deceiver and an antichrist.

2 Thessalonians 2:3-8

Let no man deceive you in any way: because that cannot be till the apostasy come first, and the man of sin appear, the son of perdition,

Treasury of Scripture Knowledge

Summary

1 John 4:3

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.

And this

1 John 2:18

2 Thessalonians 2:7

2 John 1:7

General references

John 8:47

Bible References

And this

My dear children, it is the last hour; and as ye have heard that antichrist is coming, even now there are many antichrists: by which we know it is the last hour.

For the mystery of iniquity is already powerfully working; only he that withholdeth hitherto, will do so till he is removed.

For many deceivers are gone out into the world, who do not confess Jesus the Messiah as come in the flesh. Such a one is a deceiver and an antichrist.

General references

He that is of God heareth the words of God: ye therefore do not hear him, because ye are not of God.