Cruel both with wrath and fierce anger; divers words are heaped together, to signify the extremity of his anger. The sinners thereof; the inhabitants of that city, who were guilty of so much idolatry and cruelty, and all sorts of luxury.
Related Commentaries of Isaiah 13:9
Isaiah 13:9
9 Behold, the day of the LORD cometh, cruel both with wrath and fierce anger, to lay the land desolate: and he shall destroy the sinners thereof out of it.