Albert Barnes Commentary Zechariah 8:12

"For [there shall be] the seed of peace; the vine shall give its fruit, and the ground shall give its increase, and the heavens shall give their dew; and I will cause the remnant of this people to inherit all these things." — Zechariah 8:12 (ASV)

For the seed shall be peace - “Your seed shall be peace and a blessing, so that they will call it ‘a seed of peace.’” The unusual construction is perhaps adopted, in order to suggest a further meaning. It is a reversal of the condition, just spoken of, when there was “no peace to him that went, or to him that returned.”

The vine shall give her fruit and the ground shall give her increase - The old promise in the law on obedience (Leviticus 26:4), as the exact contrary was threatened on disobedience (Leviticus 26:20). It had been revived in the midst of promise of spiritual blessing and of the coming of Christ, in Ezekiel (Ezekiel 34:27). Ribera: “By the metaphor of sensible things he explains (as the prophets often do) the abundance of spiritual good in the time of the new law, as did Hosea (Hosea 2:21–22), Joel (Joel 2:23–25, 3:18), Amos (Amos 9:13), and many others.” “And I will cause the remnant of the people to inherit.” Ribera: “As if he said, I promised these things not to you who live now, but to the future remnant of your people, that is, those who will believe in Christ and will be saved, while the rest perish. These will possess these spiritual goods, which I promise now, under the image of temporal.” As our Lord said, “He that overcometh shall inherit all things, and I will be his God, and he shall be My son” (Revelation 21:7).