כִּֽי־הָיִ֣יתָ מַחְסֶ֣ה לִ֑י מִגְדַּל־עֹ֝֗ז מִפְּנֵ֥י אוֹיֵֽב׃
주는 나의 피난처시요 원수를 피하는 견고한 망대심이니이다
Malbim
Each adopts a specific philosophical system upon which he takes up his position; as in a fortress; (Psalms 61:4) counter attacking with great courage (Isaiah 28:6) with all available ammunition (Job 36:19).