'In the Wilderness' in the Bible

Annas and Caiaphas being chief priests -- there came a word of God unto John the son of Zacharias, in the wilderness,

as it hath been written in the scroll of the words of Isaiah the prophet, saying, 'A voice of one crying in the wilderness, Prepare ye the way of the Lord, straight make ye His paths;

'What man of you having a hundred sheep, and having lost one out of them, doth not leave behind the ninety-nine in the wilderness, and go on after the lost one, till he may find it?