Mark 1:4

John appeared, baptizing in the wilderness and proclaiming a baptism of repentance for the forgiveness of sins.

Luke 1:77

to give knowledge of salvation to his people in the forgiveness of their sins,

Matthew 3:1-2

In those days John the Baptist came preaching in the wilderness of Judea,

Matthew 3:6

and they were baptized by him in the river Jordan, confessing their sins.

Matthew 3:11

"I baptize you with water for repentance, but he who is coming after me is mightier than I, whose sandals I am not worthy to carry. He will baptize you with the Holy Spirit and fire.

Luke 3:2-3

during the high priesthood of Annas and Caiaphas, the word of God came to John the son of Zechariah in the wilderness.

John 3:23

John also was baptizing at Aenon near Salim, because water was plentiful there, and people were coming and being baptized

Acts 10:37

you yourselves know what happened throughout all Judea, beginning from Galilee after the baptism that John proclaimed:

Acts 13:24-25

Before his coming, John had proclaimed a baptism of repentance to all the people of Israel.

Acts 19:3-4

And he said, "Into what then were you baptized?" They said, "Into John's baptism."

Acts 22:16

And now why do you wait? Rise and be baptized and wash away your sins, calling on his name.'

Treasury of Scripture Knowledge

Summary

John did baptize in the wilderness, and preach the baptism of repentance for the remission of sins.

Remission

Bible References

Did

Matthew 3:1
In those days John the Baptist came preaching in the wilderness of Judea,
Luke 3:2
during the high priesthood of Annas and Caiaphas, the word of God came to John the son of Zechariah in the wilderness.
John 3:23
John also was baptizing at Aenon near Salim, because water was plentiful there, and people were coming and being baptized
Acts 10:37
you yourselves know what happened throughout all Judea, beginning from Galilee after the baptism that John proclaimed:
Acts 13:24
Before his coming, John had proclaimed a baptism of repentance to all the people of Israel.
Acts 19:3
And he said, "Into what then were you baptized?" They said, "Into John's baptism."

Remission

Acts 22:16
And now why do you wait? Rise and be baptized and wash away your sins, calling on his name.'

The Holy Bible, English Standard Version® copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.