7. That the accomplishment of this will be a strong confirmation of the truth of God's word: You shall know that the Lord of hosts has sent me unto you. That promise, that those that were afar off should come and assist them in building the temple of the Lord, was as it were the giving of them a sign; by this they might be assured that the other promises should be fulfilled in due time. This should be fulfilled now very speedily; it was so, for those that had been their enemies and accusers, in obedience to the king's edict, became their helpers and did speedily what they were ordered to do for the furtherance of the work, and by that means the work went on and was finished; see Ezra vi. 13, 14. Now, by this surprising assistance which they had from afar off in building the temple, they might know that Zechariah, who told them of it before, was sent of God, and that therefore his word concerning the man the branch should be fulfilled.