Adam Clarke on Zechariah 4:6

This is the word of the Lord unto Zerubbabel - This prince was in a trying situation, and he needed especial encouragement from God; and here it is: Not by might, (of thy own), nor by power, (authority from others), but by my Spirit - the providence, authority, power, and energy of the Most High. In this way shall my temple be built; in this way shall my Church be raised and preserved. No secular arm, no human prudence, no earthly policy, no suits at law, shall ever be used for the founding, extension, and preservation of my Church. But the spirit of the world says, "These are all means to which as we must have recourse; otherwise the cause of God may be ruined." Satan, thou liest!