Mark 1:4

John the Baptist appeared in the wilderness preaching a baptism of repentance for the forgiveness of sins.

Luke 1:77

To give to His people the knowledge of salvation
By the forgiveness of their sins,

Matthew 3:1-2

Now in those days John the Baptist *came, preaching in the wilderness of Judea, saying,

Matthew 3:6

and they were being baptized by him in the Jordan River, as they confessed their sins.

Matthew 3:11

“As for me, I baptize you with water for repentance, but He who is coming after me is mightier than I, and I am not fit to remove His sandals; He will baptize you with the Holy Spirit and fire.

Luke 3:2-3

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

John 3:23

John also was baptizing in Aenon near Salim, because there was much water there; and people were coming and were being baptized—

Acts 10:37

you yourselves know the thing which took place throughout all Judea, starting from Galilee, after the baptism which John proclaimed.

Acts 13:24-25

after John had proclaimed before His coming a baptism of repentance to all the people of Israel.

Acts 19:3-4

And he said, “Into what then were you baptized?” And they said, “Into John’s baptism.”

Acts 22:16

Now why do you delay? Get up 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
Now in those days John the Baptist *came, preaching in the wilderness of Judea, saying,
Luke 3:2
in the high priesthood of Annas and Caiaphas, the word of God came to John, the son of Zacharias, in the wilderness.
John 3:23
John also was baptizing in Aenon near Salim, because there was much water there; and people were coming and were being baptized—
Acts 10:37
you yourselves know the thing which took place throughout all Judea, starting from Galilee, after the baptism which John proclaimed.
Acts 13:24
after John had proclaimed before His coming a baptism of repentance to all the people of Israel.
Acts 19:3
And he said, “Into what then were you baptized?” And they said, “Into John’s baptism.”

Remission

Acts 22:16
Now why do you delay? Get up and be baptized, and wash away your sins, calling on His name.’