Deuteronomy 27:11-13

That same day Moses also gave this charge to the people: “When you cross the Jordan River, the tribes of Simeon, Levi, Judah, Issachar, Joseph, and Benjamin must stand on Mount Gerizim to proclaim a blessing over the people. And the tribes of Reuben, Gad, Asher, Zebulun, Dan, and Naphtali must stand on Mount Ebal to proclaim a curse.