Matthew 3:6
3:6 and he was baptizing them in the Jordan River as they confessed their sins.
Matthew 3:13
The Baptism of Jesus
3:13 Then Jesus came from Galilee to John to be baptized by him in the Jordan River.
Matthew 4:25
4:25 And large crowds followed him from Galilee, the Decapolis, Jerusalem, Judea, and beyond the Jordan River.