'Walls' in the Bible

He also overlaid the house [the Holy Place] with gold—the beams, the thresholds, and its walls and its doors; and he carved cherubim on the walls.

He also built upper Beth-horon and lower Beth-horon, fortified cities with walls, gates, and bars [to lock the gates];

So he said to Judah, “Let us build these cities and surround them with walls, towers, gates and bars [to secure the doors]. The land is still ours because we have sought the Lord our God; we have sought Him [longing for Him with all our heart] and He has given us peace on every side.” So they built and prospered.

He went out and made war against the Philistines, and broke through the wall of Gath, the wall of Jabneh, and the wall of Ashdod; and he built cities near Ashdod and [elsewhere] among the Philistines.