Mark 1:4

John the baptizer appeared in the desert, and preached repentance and baptism in order to obtain the forgiveness of sins.

Luke 1:77

Bringing his people the knowledge of salvation Through the forgiveness of their sins.

Matthew 3:1-2

In those days John the Baptist appeared, and preached in the desert of Judea.

Matthew 3:6

and they were baptized by him in the Jordan River, in acknowledgment of their sins.

Matthew 3:11

I am baptizing you in water in token of your repentance, but he who is coming after me is stronger than I am, and I am not fit to carry his shoes. He will baptize you in the holy Spirit and in fire.

Luke 3:2-3

in the high priesthood of Annas and Caiaphas, a message from God came to Zechariah's son John in the desert.

John 3:23

John too was baptizing at Aenon, near Salim, for there was plenty of water there, and people came there and were baptized.

Acts 10:37

You know the story that has gone all over Judea, starting from Galilee after the baptism that John proclaimed,

Acts 13:24-25

in preparation for whose coming John had preached to all the people of Israel baptism in token of repentance.

Acts 19:3-4

"How then were you baptized?" he asked. "With John's baptism," they answered.

Acts 22:16

And now, why do you delay? Get up and be baptized, and wash out 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 appeared, and preached in the desert of Judea.
Luke 3:2
in the high priesthood of Annas and Caiaphas, a message from God came to Zechariah's son John in the desert.
John 3:23
John too was baptizing at Aenon, near Salim, for there was plenty of water there, and people came there and were baptized.
Acts 10:37
You know the story that has gone all over Judea, starting from Galilee after the baptism that John proclaimed,
Acts 13:24
in preparation for whose coming John had preached to all the people of Israel baptism in token of repentance.
Acts 19:3
"How then were you baptized?" he asked. "With John's baptism," they answered.

Remission

Acts 22:16
And now, why do you delay? Get up and be baptized, and wash out your sins, calling on his name.'