1 John 4:3

and every spirit that doth not confess Jesus Christ, who is come in the flesh, is not of God: and this is that spirit of antichrist, which ye have heard was coming, and is already in the world.

1 John 2:18

Little children, it is the last time: and as ye have heard that an antichrist will come, there are even now many antichrists, whereby we know that it is the last time.

1 John 2:22

Who is a liar, if not he who denieth that Jesus is the Christ? This is the antichrist, that denieth the Father as well as the Son;

2 John 1:7

For many deceivers are come out into the world, who disown that Jesus Christ is come in the flesh. Such a one is a deceiver and an antichrist.

2 Thessalonians 2:3-8

Let not any one deceive you by any means; for it shall not come till there come an apostasy first, and the man of sin be revealed,

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

Little children, it is the last time: and as ye have heard that an antichrist will come, there are even now many antichrists, whereby we know that it is the last time.

For the mystery of iniquity is already working, only there is one that hindreth till he be taken out of the way.

For many deceivers are come out into the world, who disown that Jesus Christ is come in the flesh. Such a one is a deceiver and an antichrist.

General references

He, that is of God, receiveth the words of God; but ye therefore receive them not, because ye are not of God.