'In the Wilderness' in the Bible

In those days John the Baptist came, preaching in the Wilderness of Judea

For he is the one spoken of through the prophet Isaiah, who said:A voice of one crying out in the wilderness:Prepare the way for the Lord;make His paths straight!

So if they tell you, ‘Look, He’s in the wilderness!’ don’t go out; ‘Look, He’s in the inner rooms!’ do not believe it.