Joshua 18:4-6

4Appoint three men from each tribe. I will send them out to make a survey of the land and to write a description of it, according to the inheritance of each. Then they will return to me. 5You are to divide the land into seven parts. Judah is to remain in its territory on the south and the tribes of Joseph in their territory on the north. 6After you have written descriptions of the seven parts of the land, bring them here to me and I will cast lots for you in the presence of the LORD our God.