'Wall' in the Bible

At the same time, Tattenai, ruler of the land across the river, and Shethar-bozenai, and their men, came to them and said, Who gave you orders to go on building this house and this wall?

For we are servants; but our God has not been turned away from us in our prison, but has had mercy on us before the eyes of the kings of Persia, to give us new strength to put up again the house of our God and to make fair its waste places, and to give us a wall in Judah and Jerusalem.