'In The Desert' in the Bible

from Isa. 40:3], "Look, I am sending my messenger on ahead of you. He will prepare the way for you.

John [the Immerser] came immersing people in the desert and proclaiming that those immersed on the basis of their repentance would receive the forgiveness of sins [from God].

And people from throughout all the regions of Judea and all of Jerusalem went out to John [in the desert]. And he immersed them in the Jordan River as they confessed their sins.