'In the Wilderness' in the Bible

A voice of one shouting in the wilderness,‘Prepare the way of the Lord,Make His paths straight!’”

John the Baptist appeared in the wilderness preaching a baptism of repentance for the forgiveness of sins [that is, requiring a change of one’s old way of thinking, turning away from sin and seeking God and His righteousness].

He was in the wilderness forty days being tempted [to do evil] by Satan; and He was with the wild animals, and the angels ministered continually to Him.