'Desert' 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].

Immediately the [Holy] Spirit forced Him out into the wilderness.

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.

But he went out and began to proclaim it freely and to spread the news [of his healing], to such an extent that Jesus could no longer openly enter a city [where He was known], but stayed out in the unpopulated places; yet people were still coming to Him from everywhere.

Jesus said to them, “You will all fall away [and be ashamed and be afraid to be associated with Me as disciples], because it is written, ‘I will strike the Shepherd, and the sheep will be scattered.’

But Peter said to Him, “Even if they all fall away [and desert You, ashamed and afraid of being associated with You], yet I will not [do so]!”