2 John 1:7

For many deceivers have gone out into the world, those who don't confess that Jesus Christ came in the flesh. This is the deceiver and the Antichrist.

1 John 4:1-3

Beloved, don't believe every spirit, but test the spirits, whether they are of God, because many false prophets have gone out into the world.

1 John 2:26

These things I have written to you concerning those who would lead you astray.

John 1:14

The Word became flesh, and lived among us. We saw his glory, such glory as of the one and only Son of the Father, full of grace and truth.

1 Timothy 3:16

Without controversy, the mystery of godliness is great: God was revealed in the flesh, justified in the spirit, seen by angels, preached among the nations, believed on in the world, and received up in glory.

2 Peter 2:1-3

But false prophets also arose among the people, as false teachers will also be among you, who will secretly bring in destructive heresies, denying even the Master who bought them, bringing on themselves swift destruction.

1 John 2:18-22

Little children, these are the end times, and as you heard that the Antichrist is coming, even now many antichrists have arisen. By this we know that it is the final hour.

Revelation 12:9

The great dragon was thrown down, the old serpent, he who is called the devil and Satan, the deceiver of the whole world. He was thrown down to the earth, and his angels were thrown down with him.

Revelation 13:14

He deceives my own people who dwell on the earth because of the signs he was granted to do in front of the beast; saying to those who dwell on the earth, that they should make an image to the beast who had the sword wound and lived.

Treasury of Scripture Knowledge

Summary

For many deceivers are entered into the world, who confess not that Jesus Christ is come in the flesh. This is a deceiver and an antichrist.

Bible References

Many

2 Peter 2:1
But false prophets also arose among the people, as false teachers will also be among you, who will secretly bring in destructive heresies, denying even the Master who bought them, bringing on themselves swift destruction.
1 John 2:18
Little children, these are the end times, and as you heard that the Antichrist is coming, even now many antichrists have arisen. By this we know that it is the final hour.
1 John 4:1
Beloved, don't believe every spirit, but test the spirits, whether they are of God, because many false prophets have gone out into the world.

Who

John 1:14
The Word became flesh, and lived among us. We saw his glory, such glory as of the one and only Son of the Father, full of grace and truth.
1 Timothy 3:16
Without controversy, the mystery of godliness is great: God was revealed in the flesh, justified in the spirit, seen by angels, preached among the nations, believed on in the world, and received up in glory.
1 John 4:2
By this you know the Spirit of God: every spirit who confesses that Jesus Christ has come in the flesh is of God,
Revelation 12:9
The great dragon was thrown down, the old serpent, he who is called the devil and Satan, the deceiver of the whole world. He was thrown down to the earth, and his angels were thrown down with him.
Revelation 13:14
He deceives my own people who dwell on the earth because of the signs he was granted to do in front of the beast; saying to those who dwell on the earth, that they should make an image to the beast who had the sword wound and lived.

This is

1 John 2:22
Who is the liar but he who denies that Jesus is the Christ? This is the Antichrist, he who denies the Father and the Son.
1 John 4:3
and every spirit who doesn't confess that Jesus Christ has come in the flesh is not of God, and this is the spirit of the Antichrist, of whom you have heard that it comes. Now it is in the world already.