Read Mark 1:5 Using Other Translations
And there went out unto him all the land of Judaea, and they of Jerusalem, and were all baptized of him in the river of Jordan, confessing their sins.
And all the country of Judea and all Jerusalem were going out to him and were being baptized by him in the river Jordan, confessing their sins.
All of Judea, including all the people of Jerusalem, went out to see and hear John. And when they confessed their sins, he baptized them in the Jordan River.