John 1:7

This one came for a witness, in order that he could testify about the light, so that all would believe through him.

John 1:19

And this is the testimony of John, when the Jews sent priests and Levites from Jerusalem so that they could ask him, "Who are you?"

Acts 19:4

And Paul said, "John baptized [with] a baptism of repentance, telling the people that they should believe in the one who was to come after him--that is, in Jesus."

John 1:9

The true light, who gives light to every person, was coming into the world.

John 1:12

But as many as received him--to those who believe in his name--he gave to them authority to become children of God,

John 1:15

John testified about him and cried out, saying, "This one was [he about] whom I said, 'The one who comes after me is ahead of me, because he existed before me.'"

John 1:26-27

John answered them, saying, "I baptize with water. In your midst stands [one] whom you do not know--

John 1:32-34

And John testified, saying, "I have seen the Spirit descending like a dove from heaven and remaining upon him.

John 1:36

and looking at Jesus [as he] was walking by, he said, "Look! The Lamb of God!"

John 3:26-36

And they came to John and said to him, "Rabbi, he who was with you on the other side of the Jordan, about whom you testified--look, this one 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 enlighten everyone [as to] what [is] the administration of the mystery hidden from the ages by God, who created all [things],

1 Timothy 2:4

who wants all people to be saved and to come to a knowledge of the truth.

Titus 2:11

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

2 Peter 3:9

The Lord is not delaying the promise, as some consider slowness, but is being patient toward you, [because he] does not want any to perish, but 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
And this is the testimony of John, when the Jews sent priests and Levites from Jerusalem so that they could ask him, "Who are you?"
John 3:26
And they came to John and said to him, "Rabbi, he who was with you on the other side of the Jordan, about whom you testified--look, this one 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
And Paul said, "John baptized [with] a baptism of repentance, telling the people that they should believe in the one who was to come after him--that is, in Jesus."

That

John 1:9
The true light, who gives light to every person, was coming into the world.
John 3:26
And they came to John and said to him, "Rabbi, he who was with you on the other side of the Jordan, about whom you testified--look, this one is baptizing, and all are coming to him!"
Ephesians 3:9
and to enlighten everyone [as to] what [is] the administration of the mystery hidden from the ages by God, who created all [things],
1 Timothy 2:4
who wants all people to be saved and to come to a knowledge of the truth.
Titus 2:11
For the grace of God has appeared, bringing salvation to all people,
2 Peter 3:9
The Lord is not delaying the promise, as some consider slowness, but is being patient toward you, [because he] does not want any to perish, but all to come to repentance.

General references

Mark 11:30
The baptism of John--was [it] from heaven or from men? Answer me!"
Acts 13:24
Before {his coming} John had publicly proclaimed a baptism of repentance to all the people of Israel.