6:1-12 When God's time is come for fulfilling his gracious purposes concerning his church, he will raise up instruments to do it, from whom such good service was not expected. While our thoughts are directed to this event, we are led by Zechariah to fix our regard on a nobler, a spiritual building. The Lord Jesus Christ continues to lay one stone upon another: let us assist the great design. Difficulties delay the progress of this sacred edifice. Yet let not opposition discourage us, for in due season it will be completed to his abundant praise. He shall bring forth the head-stone thereof with shoutings, crying, Grace, grace unto it.

11, 12. whosoever shall alter this word—The warning was specially directed against the turbulent and fanatical Samaritans. The extremely favorable purport of this edict was no doubt owing in some measure to the influence of Cyrus, of whom Darius entertained a high admiration, and whose two daughters he had married. But it proceeded still more from the deep impressions made even on the idolatrous people of that country and that age, as to the being and providence of the God of Israel.