1 John 4:14

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

John 4:42

and they said to the woman, It is no longer on account of thy saying that we believe, for we have heard him ourselves, and we know that this is indeed the Saviour of the world.

John 1:14

And the Word became flesh, and dwelt among us (and we have contemplated his glory, a glory as of an only-begotten with a father), full of grace and truth;

John 3:16-17

For God so loved the world, that he gave his only-begotten Son, that whosoever believes on him may not perish, but have life eternal.

John 15:26-27

But when the Comforter is come, whom I will send to you from the Father, the Spirit of truth who goes forth from with the Father, he shall bear witness concerning me;

1 John 4:10

Herein is love, not that we loved God, but that he loved us, and sent his Son a propitiation for our sins.

John 1:29

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

John 3:11

Verily, verily, I say unto thee, We speak that which we know, and we bear witness of that which we have seen, and ye receive not our witness.

John 3:32

and what he has seen and has heard, this he testifies; and no one receives his testimony.

John 3:34

for he whom God has sent speaks the words of God, for God gives not the Spirit by measure.

John 5:36-37

But I have the witness that is greater than that of John; for the works which the Father has given me that I should complete them, the works themselves which I do, bear witness concerning me that the Father has sent me.

John 5:39

Ye search the scriptures, for ye think that in them ye have life eternal, and they it is which bear witness concerning me;

John 10:36

do ye say of him whom the Father has sanctified and sent into the world, Thou blasphemest, because I said, I am Son of God?

John 12:47

and if any one hear my words and do not keep them, I judge him not, for I am not come that I might judge the world, but that I might save the world.

Acts 18:5

And when both Silas and Timotheus came down from Macedonia, Paul was pressed in respect of the word, testifying to the Jews that Jesus was the Christ.

1 Peter 5:12

By Silvanus, the faithful brother, as I suppose, I have written to you 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, that which we have heard, which we have seen with our eyes; that which we contemplated, and our hands handled, concerning the word of life;

1 John 2:1-2

My children, these things I write to you in order that ye may not sin; and if any one sin, we have a patron with the Father, Jesus Christ the righteous;

1 John 5:9

If we receive the witness of men, the witness of God is greater. For this is the witness of God which he has witnessed concerning 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, that which we have heard, which we have seen with our eyes; that which we contemplated, and our hands handled, concerning the word of life;
1 John 5:9
If we receive the witness of men, the witness of God is greater. For this is the witness of God which he has witnessed concerning his Son.
John 1:14
And the Word became flesh, and dwelt among us (and we have contemplated his glory, a glory as of an only-begotten with a father), full of grace and truth;
John 3:11
Verily, verily, I say unto thee, We speak that which we know, and we bear witness of that which we have seen, and ye receive not our witness.
John 5:39
Ye search the scriptures, for ye think that in them ye have life eternal, and they it is which bear witness concerning me;
John 15:26
But when the Comforter is come, whom I will send to you from the Father, the Spirit of truth who goes forth from with the Father, he shall bear witness concerning me;
Acts 18:5
And when both Silas and Timotheus came down from Macedonia, Paul was pressed in respect of the word, testifying to the Jews that Jesus was the Christ.
1 Peter 5:12
By Silvanus, the faithful brother, as I suppose, I have written to you briefly; exhorting and testifying that this is the true grace of God in which ye stand.

The father

1 John 4:10
Herein is love, not that we loved God, but that he loved us, and sent his Son a propitiation for our sins.
John 3:34
for he whom God has sent speaks the words of God, for God gives not the Spirit by measure.
John 5:36
But I have the witness that is greater than that of John; for the works which the Father has given me that I should complete them, the works themselves which I do, bear witness concerning me that the Father has sent me.
John 10:36
do ye say of him whom the Father has sanctified and sent into the world, Thou blasphemest, because I said, I am Son of God?

General references

Isaiah 43:11
I, I am Jehovah; and besides me there is no saviour.
Luke 19:10
for the Son of man has come to seek and to save that which is lost.