1 John 4:2

By this you know the Spirit of God; every spirit which confesses that Jesus Christ has come in the flesh is of God,

1 Corinthians 12:3

I assure you, therefore, that no one speaking by the Spirit of God calls Jesus an accursed thing, and no one can call Jesus Lord, except by the Holy Spirit.

John 1:14

And the Word became flesh and tabernacled with us and we beheld his glory, a glory as of an only child with a father, full of grace and truth.

John 16:13-15

but when he, the Spirit of truth has come, he will lead you in all the truth; for he will not speak of himself, but he will speak whatever he shall hear, and tell you things to come.

1 Timothy 3:16

And confessedly great is the mystery of piety; [Christ,] who was manifested in the flesh, was justified in the spirit, was seen by angels, was preached to the nations, was believed on in the world, was received up into glory.

1 John 2:23

No one that denies the Son has the Father; he that confesses the Son has the Father also.

1 John 4:3

and every spirit which does not confess Jesus is not of God. And this is the [spirit] of anti-christ, of which you have heard that he is coming, and he is now in the world already.

1 John 5:1

Every one who believes that Jesus is the Christ has been born of God, and every one who loves the Father loves also the Son who is born to him.

Treasury of Scripture Knowledge

Summary

Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God:

General references

Bible References

Come

1 John 4:3
and every spirit which does not confess Jesus is not of God. And this is the [spirit] of anti-christ, of which you have heard that he is coming, and he is now in the world already.
John 1:14
And the Word became flesh and tabernacled with us and we beheld his glory, a glory as of an only child with a father, full of grace and truth.
1 Timothy 3:16
And confessedly great is the mystery of piety; [Christ,] who was manifested in the flesh, was justified in the spirit, was seen by angels, was preached to the nations, was believed on in the world, was received up into glory.

General references

John 8:47
He that is of God hears the words of God; you, therefore, hear not, because you are not of God.