הֵילִ֕ילוּ כִּ֥י קָר֖וֹב י֣וֹם יְהוָ֑ה כְּשֹׁ֖ד מִשַּׁדַּ֥י יָבֽוֹא׃
Aullad, porque cerca está el día de SEÑOR; vendrá como asolamiento del Todopoderoso.
Rabbeinu Bahya
The correct interpretation of the name Shaddai is that given by Rabbi Shmuel Ha-Nagid (of Cordova); the word is derived from שודד, i.e. “destroys, ruins.” The idea is that G’d destroys even the forces of heaven (if need be).