Then spoke Haggai the Lord's messenger
Which some render "angel"; hence sprung that notion, imbibed by some, that he was not a man, but an angel; whereas this only respects his office, being sent of God as an ambassador in his name with a message to his people: he now observing what effect his prophecy had upon the people; they being convinced of their sin, and terrified with the judgments of God upon them, and fearing that worse still would attend them; in order to revive their spirits and comfort them, spake the words unto them which follow: and this he did in the Lord's message unto the people;
not of his own head, nor out of the pity of his own heart merely; but as a prophet of the Lord, having a fresh message from him to carry a promise to them for their comfort and encouragement: saying, I [am] with you, saith the Lord;
to pardon their sins; to accept their persons; to remove his rod from them; to assist them in the work of building the temple, they were now willing to engage in; to protect them from their enemies, and to strengthen them to go on with the work till they had finished it; a short promise, but a very full one: it was saying much in a little, and enough to remove all their fears, to scatter all their doubts, and to bear them up, and through all discouragements.