'Wilderness' in the Bible

In those days John the Baptist came into the wilderness of Judea proclaiming,

For he is the one about whom Isaiah the prophet had spoken: "The voice of one shouting in the wilderness, 'Prepare the way for the Lord, make his paths straight.'"

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

While they were going away, Jesus began to speak to the crowd about John: "What did you go out into the wilderness to see? A reed shaken by the wind?

So then, if someone says to you, 'Look, he is in the wilderness,' do not go out, or 'Look, he is in the inner rooms,' do not believe him.