1 John 4:14

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

John 4:42

And said to the woman, Now we believe, not because of thy saying: for we have heard him ourselves, and know that this is indeed the Christ, the Savior of the world.

John 1:14

And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.

John 3:16-17

For God so loved the world, that he gave his only-begotten Son, that whoever believeth in him, should not perish, but have everlasting life.

John 15:26-27

But when the Comforter is come, whom I will send to you from the Father, even the Spirit of truth, who proceedeth from the Father, he will testify concerning me.

1 John 4:10

In this is love, not that we loved God, but that he loved us, and sent his Son to be the propitiation for our sins.

John 1:29

The next day John seeth Jesus coming to him, and saith, Behold the Lamb of God, who taketh away the sin of the world.

John 3:11

Verily, verily, I say to thee, We speak what we know, and testify what we have seen; and ye receive not our testimony.

John 3:32

And what he hath seen and heard, that he testifieth; and no man receiveth his testimony.

John 3:34

For he whom God hath sent, speaketh the words of God: for to him God giveth not the Spirit by measure.

John 5:36-37

But I have greater testimony than that of John: for the works which the Father hath given me to finish, the same works that I do, bear testimony concerning me, that the Father hath sent me.

John 5:39

Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me.

John 10:36

Say ye of him, whom the Father hath sanctified, and sent into the world, Thou blasphemest; because I said, I am the Son of God?

John 12:47

And if any man hear my words, and believe not, I judge him not: for I came not to judge the world, but to save the world.

Acts 18:5

And when Silas and Timothy had come from Macedonia, Paul was pressed in spirit, and testified to the Jews, that Jesus was Christ.

1 Peter 5:12

By Silvanus, a faithful brother to you, as I suppose, I have written briefly, exhorting, and testifying that this is the true grace of God in which ye stand.

1 John 1:1-3

That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked upon, and our hands have handled, of the word of life;

1 John 2:1-2

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

1 John 5:9

If we receive the testimony of men, the testimony of God is greater: for this is the testimony of God which he hath testified of 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
That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked upon, and our hands have handled, of the word of life;
1 John 5:9
If we receive the testimony of men, the testimony of God is greater: for this is the testimony of God which he hath testified of his Son.
John 1:14
And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.
John 3:11
Verily, verily, I say to thee, We speak what we know, and testify what we have seen; and ye receive not our testimony.
John 5:39
Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me.
John 15:26
But when the Comforter is come, whom I will send to you from the Father, even the Spirit of truth, who proceedeth from the Father, he will testify concerning me.
Acts 18:5
And when Silas and Timothy had come from Macedonia, Paul was pressed in spirit, and testified to the Jews, that Jesus was Christ.
1 Peter 5:12
By Silvanus, a faithful brother to you, as I suppose, I have written briefly, exhorting, and testifying that this is 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 to be the propitiation for our sins.
John 3:34
For he whom God hath sent, speaketh the words of God: for to him God giveth not the Spirit by measure.
John 5:36
But I have greater testimony than that of John: for the works which the Father hath given me to finish, the same works that I do, bear testimony concerning me, that the Father hath sent me.
John 10:36
Say ye of him, whom the Father hath sanctified, and sent into the world, Thou blasphemest; because I said, I am the Son of God?

General references

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