John Gills Exposition of the Bible Commentary - Zechariah 7:12
Yea, they made their hearts as an adamant stone ,.... The word here used is translated a "diamond" in Jeremiah 17:1 and it is said to be harder than a flint, Ezekiel 3:9 . The Jewish writers say F7 Misn. Sota, c. 9. sect. 12. Pirke Abot. c. 5. sect. 5. & Maimon. & Bartenora in ib. Kimchi in 1 Reg. vi. 7. Jarchi in Isa. v. 6. it is a worm like a barley corn, so strong as to cut the hardest stones in pieces; Moses (they say) used it in hewing the stones for the two tables... read more
Matthew Henry's Complete Commentary - Zechariah 7:8-14
What was said Zech. 7:7; that they should have heard the words of the former prophets, is here enlarged upon, for warning to these hypocritical enquirers, who continued their sins when they asked with great preciseness whether they should continue their fasts. This prophet had before put them in mind of their fathers? disobedience to the calls of the prophets, and what was the consequence of it (Zech. 1:4-6), and now here again; for others? harms should be our warnings. God's judgments upon... read more