Ezekiel 45:7

45:7 “‘For the prince there will be land on both sides of the holy allotment and the allotted city, alongside the holy allotment and the allotted city, on the west side and on the east side; it will be comparable in length to one of the portions, from the west border to the east border

Ezekiel 47:18

47:18 On the east side, between Hauran and Damascus, and between Gilead and the land of Israel, will be the Jordan. You will measure from the border to the eastern sea. This is the east side.