Mark 1:5 in the World English Bible
All the country of Judea and all those of Jerusalem went out to him. They were baptized by him in the Jordan river, confessing their sins.
Context
4 John did baptize in the wilderness, and preach the baptism of repentance for the remission of sins.
5 And there went out unto him all the land of Judæa, and they of Jerusalem, and were all baptized of him in the river of Jordan, confessing their sins.
6 And John was clothed with camel’s hair, and with a girdle of a skin about his loins; and he did eat locusts and wild honey;