1 John 5:9

If we accept the testimony of men, the testimony of God is stronger still; for the value of God's testimony lies in this, that he has testified to his Son.

Matthew 3:16-17

And when Jesus was baptized, he went right up out of the water, and the heavens opened, and he saw the Spirit of God come down like a dove and light upon him,

John 10:38

But if I am doing them, then even if you will not believe me, believe the things I do, in order that you may realize and learn that the Father is in union with me, and I am in union with the Father."

Matthew 17:5

As he spoke a bright cloud overshadowed them and a voice from the cloud said, "This is my Son, my Beloved. He is my Chosen. Listen to him!"

John 3:32-33

It is to what he has seen and heard that he gives testimony, and yet no one accepts his testimony.

John 5:31-37

"If I testify to myself, my testimony is not true.

John 5:39

You pore over the Scriptures, for you think that you will find eternal life in them, and these very Scriptures testify to me,

John 8:17-19

Why, in your own Law it is stated that the testimony of two persons is valid.

Acts 5:32

We and the holy Spirit which God has given to those who obey him are witnesses to these things."

Acts 17:31

since he has fixed a day on which he will justly judge the world through a man whom he has appointed, and whom he has guaranteed to all men by raising him from the dead."

Hebrews 2:4

while God himself corroborated their testimony with signs, portents, and various wonders, and by impartations of the holy Spirit when he saw fit.

Hebrews 6:18

so that by these two unalterable things, which make it impossible for God to break his promise, we who have taken refuge with him may be greatly encouraged to seize upon the hope that is offered to us.

1 John 5:10

Whoever believes in the Son of God possesses that testimony in his heart. Anyone who will not believe God has made him a liar, for he has refused to believe the testimony that God has borne to his Son.

Treasury of Scripture Knowledge

Summary

If we receive the witness of men, the witness of God is greater: for this is the witness of God which he hath testified of his Son.

Bible References

We

1 John 5:10
Whoever believes in the Son of God possesses that testimony in his heart. Anyone who will not believe God has made him a liar, for he has refused to believe the testimony that God has borne to his Son.
John 3:32
It is to what he has seen and heard that he gives testimony, and yet no one accepts his testimony.
John 5:31
"If I testify to myself, my testimony is not true.
John 8:17
Why, in your own Law it is stated that the testimony of two persons is valid.
John 10:38
But if I am doing them, then even if you will not believe me, believe the things I do, in order that you may realize and learn that the Father is in union with me, and I am in union with the Father."
Acts 5:32
We and the holy Spirit which God has given to those who obey him are witnesses to these things."
Acts 17:31
since he has fixed a day on which he will justly judge the world through a man whom he has appointed, and whom he has guaranteed to all men by raising him from the dead."
Hebrews 2:4
while God himself corroborated their testimony with signs, portents, and various wonders, and by impartations of the holy Spirit when he saw fit.
Hebrews 6:18
so that by these two unalterable things, which make it impossible for God to break his promise, we who have taken refuge with him may be greatly encouraged to seize upon the hope that is offered to us.

For

Matthew 3:16
And when Jesus was baptized, he went right up out of the water, and the heavens opened, and he saw the Spirit of God come down like a dove and light upon him,
Matthew 17:5
As he spoke a bright cloud overshadowed them and a voice from the cloud said, "This is my Son, my Beloved. He is my Chosen. Listen to him!"