Commentaries:
Jamieson, Fausset, and Brown
a curse—As the heathen have made you another name for "a curse," wishing to their foes as bad a lot as yours (Jeremiah 24:9; Jeremiah 29:18); so your name shall be a formula of blessing, so that men shall say to their friend, May thy lot be as happy as that of Judah (Genesis 48:20). Including also the idea of the Jews being a source of blessing to the Gentile nations (Micah 5:7; Zephaniah 3:20). The distinct mention of "Judah" and "Israel" proves that the prophecy has not yet had its full accomplishment, as Israel (the ten tribes) has never yet been restored, though individuals of Israel returned with Judah.
All adversities formerly attended them when neglecting to build the temple: but now God promises all blessings, as an encouragement to energy in the work.
hands . . . strong—be of courageous mind (II Samuel 16:21), not merely in building, but in general, as having such bright prospects (Zechariah 8:13, etc.).
these days—the time that had elapsed between the prophet's having spoken "these words" and the time (Zechariah 8:10; compare Haggai 2:15-19) when they set about in earnest restoring the temple.
the prophets—Haggai and Zechariah himself (Ezra 5:1-2). The same prophets who promised prosperity at the foundation of the temple, now promised still greater blessings hereafter.
Other Jamieson, Fausset, and Brown entries containing Zechariah 8:13:
Ezekiel 12:16
Ezekiel 34:26
Micah 5:7
Zechariah 8:9-13
Malachi 3:12
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