Isaiah 2:15

against every high tower and every fortified wall,

He will bring down Moab's high-fortified walls, level them, and throw them into the dust on the ground.

Treasury of Scripture Knowledge

And upon every high tower, and upon every fenced wall,

I will destroy the hills and mountains and dry up the grass and trees. I will turn the river valleys into deserts and dry up the pools of water.

An illegitimate son will dwell in Ashdod. I will remove the arrogance of the Philistines.

Every island fled away, and the mountains were not found.