In those days John the Baptist began preaching in the Judean wilderness. His message was,
"Turn from your sins and turn to God, because the Kingdom of Heaven is near."
References for Matthew 3:2
Isaiah had spoken of John when he said, "He is a voice shouting in the wilderness: 'Prepare a pathway for the Lord's coming! Make a straight road for him!'"
References for Matthew 3:3
John's clothes were woven from camel hair, and he wore a leather belt; his food was locusts and wild honey.
People from Jerusalem and from every section of Judea and from all over the Jordan Valley went out to the wilderness to hear him preach.
And when they confessed their sins, he baptized them in the Jordan River.