1 John 4:14

And we have seen and testify that the Father has sent the Son, a Savior of the world.

John 4:42

And they said to the woman, We no longer believe because of thy speaking, for we have heard ourselves, and know that this really is the Savior of the world, the Christ.

John 1:14

And the Word became flesh, and dwelt among us. And we beheld his glory, glory as of the only begotten from the Father, full of grace and truth.

John 3:16-17

For God so loved the world, that he gave his only begotten Son, so that every man who believes in him would not perish, but have eternal life.

John 15:26-27

But when the helper comes whom I will send to you from the Father, the Spirit of truth that proceeds from the Father, he will testify about me.

1 John 4:10

In this is love, not that we loved God, but that he loved us, and sent his Son, an atonement for our sins.

John 1:29

On the morrow John sees Jesus coming to him, and he says, Behold, the Lamb of God who takes away the sin of the world!

John 3:11

Truly, truly, I say to thee, we speak that which we know, and testify of what we have seen, and ye do not accept our testimony.

John 3:32

And what he has seen and heard, of this he testifies, and no man receives his testimony.

John 3:34

For he whom God sent speaks the sayings of God, for God does not give the Spirit by measure.

John 5:36-37

But I have testimony greater than of John, for the works that the Father has given me so that I might complete them, the same works that I do, they testify about me that the Father has sent me.

John 5:39

Ye search the scriptures, because ye think to have eternal life in them, and those are testifying about me.

John 10:36

whom the Father made holy and sent into the world, do ye say, Thou blaspheme, because I said, I am the Son of God?

John 12:47

And if any man hears my sayings, and will not believe, I do not judge him, for I came not so that I might judge the world, but that I might save the world.

Acts 18:5

And when both Silas and Timothy came down from Macedonia, Paul was being held by the Spirit, fully testifying to the Jews, Jesus the Christ.

1 Peter 5:12

By Silvanus, the faithful brother to you, as I reckon, I wrote because of a few things, exhorting and testifying this to be the TRUE grace of God in which ye stand.

1 John 1:1-3

What was from the beginning, what we have heard, what we have seen with our eyes, what we looked upon, and our hands touched, concerning the Word of life

1 John 2:1-2

My little children, I write these things to you so that ye may not sin. And if any man does sin, we have an advocate with the Father--righteous Jesus Christ.

1 John 5:9

If we accept the testimony of men, the testimony of God is greater. Because this is the testimony of God that he has testified about his Son.

Treasury of Scripture Knowledge

Summary

And we have seen and do testify that the Father sent the Son to be the Saviour of the world.

General references

Bible References

We have

1 John 1:1
What was from the beginning, what we have heard, what we have seen with our eyes, what we looked upon, and our hands touched, concerning the Word of life
1 John 5:9
If we accept the testimony of men, the testimony of God is greater. Because this is the testimony of God that he has testified about his Son.
John 1:14
And the Word became flesh, and dwelt among us. And we beheld his glory, glory as of the only begotten from the Father, full of grace and truth.
John 3:11
Truly, truly, I say to thee, we speak that which we know, and testify of what we have seen, and ye do not accept our testimony.
John 5:39
Ye search the scriptures, because ye think to have eternal life in them, and those are testifying about me.
John 15:26
But when the helper comes whom I will send to you from the Father, the Spirit of truth that proceeds from the Father, he will testify about me.
Acts 18:5
And when both Silas and Timothy came down from Macedonia, Paul was being held by the Spirit, fully testifying to the Jews, Jesus the Christ.
1 Peter 5:12
By Silvanus, the faithful brother to you, as I reckon, I wrote because of a few things, exhorting and testifying this to be the TRUE grace of God in which ye stand.

The father

1 John 4:10
In this is love, not that we loved God, but that he loved us, and sent his Son, an atonement for our sins.
John 3:34
For he whom God sent speaks the sayings of God, for God does not give the Spirit by measure.
John 5:36
But I have testimony greater than of John, for the works that the Father has given me so that I might complete them, the same works that I do, they testify about me that the Father has sent me.
John 10:36
whom the Father made holy and sent into the world, do ye say, Thou blaspheme, because I said, I am the Son of God?

General references

Isaiah 43:11
I, even I, am LORD, and besides me there is no savior.
Luke 19:10
For the Son of man came to seek and to save that which was lost.