Deuteronomy 11:29-30

29When the Lord brings you into the land where you will live, do this: Speak aloud God's blessings from Mount Gerizim. Speak his curses from Mount Ebal.

30You know where these mountains are. They are west of the Jordan River, in the land of the Canaanites who live in the Jordan Valley. They are near Gilgal town, where the oak trees of Moreh are.