'Walls' in the Bible

Do good to Zion in your good pleasure, building up the walls of Jerusalem.

By day and night they go round the town, on the walls; trouble and sorrow are in the heart of it.

O God, the nations have come into your heritage; they have made your holy Temple unclean; they have made Jerusalem a mass of broken walls.

Why are its walls broken down by your hands, so that all who go by may take its fruit?

All his walls are broken down; you have given his strong towers to destruction.

He has made strong the iron bands of your doors; he has sent blessings on your children inside your walls.