'Wilderness' in the Bible

"The elders will listen to you, and then you and the elders of Israel must go to the king of Egypt and tell him, 'The Lord, the God of the Hebrews, has met with us. So now, let us go three days' journey into the wilderness, so that we may sacrifice to the Lord our God.'

The Lord said to Aaron, "Go to the wilderness to meet Moses. So he went and met him at the mountain of God and greeted him with a kiss.