Amos 4:9

⁹ I have smitten you with blasting and mildew: the multitude of your gardens and your vineyards and your fig-trees and your olive-trees hath the palmer-worm devoured: yet have ye not returned unto me, saith Jehovah.

Fortifications

Fortifications denote truths to the extent that they defend good. Fortifications signify defense against falsities and evils.