Acts 13:24

John having proclaimed before the face of his entry among the people the baptism of repentance to all the people of Israel.

Acts 1:22

beginning from the baptism of John until the day in which he was taken up from us, one of these should be a witness with us of his resurrection.

Matthew 3:1-11

Now in those days comes John the baptist, preaching in the wilderness of Judaea,

Mark 1:2-8

as it is written in Isaiah the prophet, Behold, I send my messenger before thy face, who shall prepare thy way.

Luke 1:76

And thou, child, shalt be called the prophet of the Highest; for thou shalt go before the face of the Lord to make ready his ways;

Luke 3:2-20

in the high priesthood of Annas and Caiaphas, the word of God came upon John, the son of Zacharias, in the wilderness.

John 1:6-8

There was a man sent from God, his name John.

John 1:15-18

(John bears witness of him, and he has cried, saying, This was he of whom I said, He that comes after me is preferred before me, for he was before me;)

John 3:25-36

There was therefore a reasoning of the disciples of John with a Jew about purification.

John 5:33-36

Ye have sent unto John, and he has borne witness to the truth.

Acts 10:37

ye know; the testimony which has spread through the whole of Judaea, beginning from Galilee after the baptism which John preached --

Acts 19:3-4

And he said, To what then were ye baptised? And they said, To the baptism of John.

Treasury of Scripture Knowledge

Summary

When John had first preached before his coming the baptism of repentance to all the people of Israel.

Bible References

General references

Acts 1:22
beginning from the baptism of John until the day in which he was taken up from us, one of these should be a witness with us of his resurrection.
Acts 10:37
ye know; the testimony which has spread through the whole of Judaea, beginning from Galilee after the baptism which John preached --
Acts 19:3
And he said, To what then were ye baptised? And they said, To the baptism of John.
Matthew 3:1
Now in those days comes John the baptist, preaching in the wilderness of Judaea,
Mark 1:2
as it is written in Isaiah the prophet, Behold, I send my messenger before thy face, who shall prepare thy way.
Luke 1:76
And thou, child, shalt be called the prophet of the Highest; for thou shalt go before the face of the Lord to make ready his ways;
Luke 3:2
in the high priesthood of Annas and Caiaphas, the word of God came upon John, the son of Zacharias, in the wilderness.
John 1:6
There was a man sent from God, his name John.
John 3:25
There was therefore a reasoning of the disciples of John with a Jew about purification.
John 5:33
Ye have sent unto John, and he has borne witness to the truth.