Albert Barnes Commentary Micah 6:13

"Therefore I also have smitten thee with a grievous wound; I have made thee desolate because of thy sins." — Micah 6:13 (ASV)

Therefore I also will—(Literally, “And I too”), that is, this you do, and so I also will do. Pococke: “As you made the heart of the poor oppressed sick, so I, by My grievous and severe punishments, will make you sick,” or I will make your wound incurable—as in Nahum, “thy wound is grievous” (Nahum 3:19), literally “made sick.” This is done in making you desolate because of your sins. The heaping up of riches shall itself be the cause of your being waste, deserted, desolate.