Numbers 34:13-15

13Moses commanded the Israelites: “Assign this land by lot as an inheritance. The LORD has ordered that it be given to the nine-and-a-half tribes, 14because the families of the tribe of Reuben, the tribe of Gad and the half-tribe of Manasseh have received their inheritance.

15These two-and-a-half tribes have received their inheritance east of the Jordan across from Jericho, toward the sunrise.”