By this you know the Spirit of God: every spirit that confesses Jesus Christ has come in the flesh is from God, and every spirit that does not confess Jesus is not from God, and this is the [spirit] of the antichrist, [of] which you have heard that it is coming, and now it is already in the world.

And we are witnesses of these things, and [so is] the Holy Spirit whom God has given to those who obey him."

Therefore I make known to you that no one speaking by the Spirit of God says, "Jesus [is] accursed," and no one is able to say "Jesus [is] Lord" except by the Holy Spirit.

And John testified, saying, "I have seen the Spirit descending like a dove from heaven and remaining upon him. And I did not know him, but the one who sent me to baptize with water, that one said to me, '[The one] upon whom you see the Spirit descending and remaining upon him--this one is the one who baptizes with the Holy Spirit.' And I have seen and testify that this one is the Chosen One of God.

Now [after he] was baptized, Jesus immediately went up from the water, and behold, the heavens opened and he saw the Spirit of God descending like a dove coming upon him.

And immediately [as he] was coming up out of the water, he saw the heavens being split apart and the Spirit descending like a dove on him.

and the Holy Spirit descended on him in bodily form like a dove, and a voice came from heaven, "You are my beloved Son; with you I am well pleased."

"When the Advocate comes, whom I will send to you from the Father--the Spirit of truth, who proceeds from the Father--that one will testify about me.

But the Advocate, the Holy Spirit, whom the Father will send in my name--that one will teach you all [things], and will remind you of everything that I said to you.

But when he--the Spirit of truth--comes, he will guide you into all the truth. For he will not speak from himself, but whatever he hears he will speak, and he will proclaim to you the things to come. He will glorify me, because he will take from what [is] mine and will proclaim [it] to you.

This is the one who came by water and blood--Jesus Christ, not with the water only, but with the water and with the blood. And the Spirit is the one who testifies, because the Spirit is the truth.

And the one who keeps his commandments resides in him, and he in him. And by this we know that he resides in us: by the Spirit whom he has given to us.

By this we know that we reside in him and he in us: that he has given us of his Spirit.

For [there] are three that testify, the Spirit and the water and the blood, and the three are {in agreement}. If we receive the testimony of people, the testimony of God is greater, because this is the testimony of God that he has testified concerning his Son.read more.
(The one who believes in the Son of God has the testimony in himself. The one who does not believe God has made him a liar, because he has not believed in the testimony that God has testified concerning his Son.)

For by one offering he has perfected for all time those who are made holy. And the Holy Spirit also testifies to us, for after saying, "This [is] the covenant that I will decree for them after those days, says the Lord: I am putting my laws on their hearts, and I will write them on their minds."read more.
[He] also [says], "Their sins and their lawless deeds I will never remember again."

For you have not received a spirit of slavery [leading] to fear again, but you have received the Spirit of adoption, by whom we cry out, "Abba! Father!" The Spirit himself confirms to our spirit that we are children of God,

And because you are sons, God sent out the Spirit of his Son into our hearts, crying out, "Abba! (Father!),"