Zechariah 4:6

4:6 Therefore he told me, “These signify the word of the Lord to Zerubbabel: ‘Not by strength and not by power, but by my Spirit,’ ¹  says the Lord who rules over all.”

Zechariah 5:9

5:9 Then I looked again and saw two women ²  going forth with the wind in their wings (they had wings like those of a stork) and they lifted up the basket between the earth and the sky.

Zechariah 7:12

7:12 Indeed, they made their heart as hard as diamond, ³  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.

¹ sn It is premature to understand the Spirit here as the Holy Spirit (the third Person of the Trinity), though the OT prepares the way for that NT revelation (cf. Gen 1:2; Exod 23:3; 31:3; Num 11:17-29; Judg 3:10; 6:34; 2 Kgs 2:9, 15, 16; Ezek 2:2; 3:12; 11:1, 5).

² sn Here two women appear as the agents of the Lord because the whole scene is feminine in nature. The Hebrew word for “wickedness” in v. 8 (רִשְׁעָה) is grammatically feminine, so feminine imagery is appropriate throughout.

³ 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).