Reconnoissance in the Bible

Joshua 2 And Joshua the son of Nun sent out of Shittim two men to spy secretly, saying, Go view the land, even Jericho. And they went, and came into an harlot's house, named Rahab, and lodged there. 2 And it was told the king of Jericho, saying, Behold, there came men in hither to night of the children of Israel to search out the country. 3 And the king of Jericho sent unto Rahab, saying, Bring forth the men that are come to thee, which are entered into thine house: for they be come to search out all the country. 4 And the woman took the two men, and hid them, and said thus, There came men unto me, but I wist not whence they were: ...

Judges 1:23 And the house of Joseph sent to descry Bethel. (Now the name of the city before was Luz.)

Judges 18:2-10 And the children of Dan sent of their family five men from their coasts, men of valour, from Zorah, and from Eshtaol, to spy out the land, and to search it; and they said unto them, Go, search the land: who when they came to mount Ephraim, to the house of Micah, they lodged there. 3 When they were by the house of Micah, they knew the voice of the young man the Levite: and they turned in thither, and said unto him, Who brought thee hither? and what makest thou in this place? and what hast thou here? 4 And he said unto them, Thus and thus dealeth Micah with me, and hath hired me, and I am his priest. 5 And they said unto him, Ask counsel, we pray thee, of God, that we may know whether our way which we go shall be prosperous. ...