Albert Barnes Commentary Zechariah 8:14

"For thus saith Jehovah of hosts: As I thought to do evil unto you, when your fathers provoked me to wrath, saith Jehovah of hosts, and I repented not;" — Zechariah 8:14 (ASV)

As I thought to punish you—(Literally, to do evil to you) and repented not. In the same way God says in Jeremiah, I have purposed and will not repent (Jeremiah 4:28).