Discovery BoxZechariah 7:12 
Context7:12 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.
Zechariah 10:2
Context10:2 For the household gods 2 have spoken wickedness, the soothsayers have seen a lie, and as for the dreamers, they have disclosed emptiness and give comfort in vain. Therefore the people set out like sheep and become scattered because they have no shepherd. 3
Zechariah 10:6
Context10:6 “I (says the Lord) will strengthen the kingdom 4 of Judah and deliver the people of Joseph 5 and will bring them back 6 because of my compassion for them. They will be as though I had never rejected them, for I am the Lord their God and therefore I will hear them.
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).
2 tn The Hebrew word תְּרָפִים (tÿrafim, “teraphim”) refers to small images used as means of divination and in other occult practices (cf. Gen 31:19, 34-35; 1 Sam 19:13, 16; Hos 3:4). A number of English versions transliterate the Hebrew term (cf. ASV, NAB, NASB, NRSV) or simply use the generic term “idols” (so KJV, NIV, TEV).
3 sn Shepherd is a common OT metaphor for the king (see esp. Jer 2:8; 3:15; 10:21; 23:1-2; 50:6; Ezek 34).
4 tn Heb “the house.”
5 tn Or “the kingdom of Israel”; Heb “the house of Joseph.”
sn Joseph is mentioned here instead of the usual Israel (but see 2 Sam 19:20; Ps 78:67; 80:1; 81:5; Ezek 37:16; Amos 5:6, 15; 6:6) because of the exodus motif that follows in vv. 8-11.
6 tc The anomalous MT reading וְחוֹשְׁבוֹתִים (vÿkhoshÿvotim) should probably be וַהֲשִׁי בוֹתִם (vahashi votim), the Hiphil perfect consecutive of שׁוּב (shuv), “return” (cf. Jer 12:15).
