'Wilderness' in the Bible

Now in those days John the Baptist came preaching in the Judean wilderness

For this is the one who was spoken about by the prophet Isaiah, saying, "The voice of one crying out in the wilderness, 'Prepare the way of the Lord, make his paths straight.'"

Then Jesus was led up into the wilderness by the Spirit to be tempted by the devil,

Now [as] these were going away, Jesus began to speak to the crowds concerning John: "What did you go out into the wilderness to see? A reed shaken by the wind?

Therefore if they say to you, 'Behold, he is in the wilderness,' do not go out, [or] 'Behold, he is in the inner rooms,' do not believe [it]!