Zakharia 7:12

7:12 Indeed, they made their heart as hard as diamond, ¹  so that they could not obey the Torah and the other words the Lord who rules over all had sent by his Spirit through the former prophets. Therefore, the Lord who rules over all had poured out great wrath.

Zakharia 8:14

8:14 “For the Lord who rules over all says, ‘As I had planned to hurt ²  you when your fathers made me angry,’ says the Lord who rules over all, ‘and I was not sorry,

Zakharia 10:3

10:3 I am enraged at the shepherds and will punish the lead-goats.

For the Lord who rules over all has brought blessing to his flock, the house of Judah, and will transform them into his majestic warhorse.

[7:12]  ¹ tn The Hebrew term שָׁמִיר (shamir) means literally “hardness” and since it is said in Ezek 3:9 to be harder than flint, many scholars suggest that it refers to diamond. It is unlikely that diamond was known to ancient Israel, however, so probably a hard stone like emery or corundum is in view. The translation nevertheless uses “diamond” because in modern times it has become proverbial for its hardness. A number of English versions use “flint” here (e.g., NASB, NIV).

[8:14]  ² tn The verb זָמַם (zamam) usually means “to plot to do evil,” but with a divine subject (as here), and in light of v. 15 where it means to plan good, the meaning here has to be the implementation of discipline (cf. NCV, CEV “punish”). God may bring hurt but its purpose is redemptive and/or pedagogical.