John 1:7

He came as a witness, to testify about the Light, so that all might believe through him.

John 1:19

This is the testimony of John, when the Jews sent to him priests and Levites from Jerusalem to ask him, “Who are you?”

Acts 19:4

Paul said, “John baptized with the baptism of repentance, telling the people to believe in Him who was coming after him, that is, in Jesus.”

John 1:9

There was the true Light which, coming into the world, enlightens every man.

John 1:12

But as many as received Him, to them He gave the right to become children of God, even to those who believe in His name,

John 1:15

John *testified about Him and cried out, saying, “This was He of whom I said, ‘He who comes after me has a higher rank than I, for He existed before me.’”

John 1:26-27

John answered them saying, “I baptize in water, but among you stands One whom you do not know.

John 1:32-34

John testified saying, “I have seen the Spirit descending as a dove out of heaven, and He remained upon Him.

John 1:36

and he looked at Jesus as He walked, and *said, “Behold, the Lamb of God!”

John 3:26-36

And they came to John and said to him, “Rabbi, He who was with you beyond the Jordan, to whom you have testified, behold, He is baptizing and all are coming to Him.”

John 5:33-35

You have sent to John, and he has testified to the truth.

Ephesians 3:9

and to bring to light what is the administration of the mystery which for ages has been hidden in God who created all things;

1 Timothy 2:4

who desires all men to be saved and to come to the knowledge of the truth.

Titus 2:11

For the grace of God has appeared, bringing salvation to all men,

2 Peter 3:9

The Lord is not slow about His promise, as some count slowness, but is patient toward you, not wishing for any to perish but for all to come to repentance.

Treasury of Scripture Knowledge

Summary

The same came for a witness, to bear witness of the Light, that all men through him might believe.

General references

Bible References

A witness

John 1:19
This is the testimony of John, when the Jews sent to him priests and Levites from Jerusalem to ask him, “Who are you?”
John 3:26
And they came to John and said to him, “Rabbi, He who was with you beyond the Jordan, to whom you have testified, behold, He is baptizing and all are coming to Him.”
John 5:33
You have sent to John, and he has testified to the truth.
Acts 19:4
Paul said, “John baptized with the baptism of repentance, telling the people to believe in Him who was coming after him, that is, in Jesus.”

That

John 1:9
There was the true Light which, coming into the world, enlightens every man.
John 3:26
And they came to John and said to him, “Rabbi, He who was with you beyond the Jordan, to whom you have testified, behold, He is baptizing and all are coming to Him.”
Ephesians 3:9
and to bring to light what is the administration of the mystery which for ages has been hidden in God who created all things;
1 Timothy 2:4
who desires all men to be saved and to come to the knowledge of the truth.
Titus 2:11
For the grace of God has appeared, bringing salvation to all men,
2 Peter 3:9
The Lord is not slow about His promise, as some count slowness, but is patient toward you, not wishing for any to perish but for all to come to repentance.

General references

Mark 11:30
Was the baptism of John from heaven, or from men? Answer Me.”
Acts 13:24
after John had proclaimed before His coming a baptism of repentance to all the people of Israel.