To spy out.

And the house of Joseph, they also went up against Bethel: and the LORD was with them. And the house of Joseph sent to DESCRY Bethel. (Now the name of the city before was Luz.) And the spies saw a man come forth out of the city, and they said unto him, Show us, we pray thee, the entrance into the city, and we will show thee mercy. ( Judges 1:22-23 )