Charles Spurgeon Commentary Zechariah 8:14-15

"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; so again have I thought in these days to do good unto Jerusalem and to the house of Judah: fear ye not." — Zechariah 8:14-15 (ASV)

For thus saith the LORD of hosts; As I thought to punish you, when your fathers provoked me to wrath, saith the LORD of hosts, and I repented not: So again have I thought in these days to do well unto Jerusalem and to the house of Judah: fear ye not.

It is a very instructive and encouraging passage. When God threatened to punish his people, he did it. He did not play with words. He punished them, and did not relent. And so when God promises to bless his people, he will not run back from his word, but he will carry out every jot and tittle of it in the blessing of his people.