Charles Ellicott Commentary Isaiah 13:6

"Wail ye; for the day of Jehovah is at hand; as destruction from the Almighty shall it come." — Isaiah 13:6 (ASV)

Howl, you; for the day of the Lord is at hand. — This verse is an almost verbal reproduction of Joel 1:15. On the “day of Jehovah,” see the note on Isaiah 2:12.

As a destruction from the Almighty. — The Hebrew term shodmish-Shaddai comes with the emphasis of assonance, possibly coupled with etymology, the Hebrew Shaddai being derived by many scholars from the verb Shadad, meaning 'to destroy.' On this assumption, “destruction from the destroyer” would be a fair equivalent.

The name Shaddai, occurring frequently in the earlier books of the Old Testament (twenty-three times in Job and eight in the Pentateuch), was characteristic of the pre-Mosaic creed of Israel (Exodus 6:3). It occurs only rarely in the prophets: here, and in Joel 1:15, Ezekiel 1:24, and Ezekiel 10:5.