Return, we beseech thee, O God of hosts - Again come and visit thy people; come back again to thy forsaken land. This is language founded on the idea that God had withdrawn from the land, or had forsaken it; that he had left his people without a protector, and had left them exposed to the ravages of fierce foreign enemies. It is language which will describe what seems often to occur when the church is apparently forsaken; when there are no cheering tokens of the divine presence; and when the people of God, discouraged, seem themselves to be forsaken by him. Compare Jeremiah 14:8.
Look down from heaven - The habitation of God. As if he did not now see his desolate vineyard, or regard it. The idea is, that if he would look upon it, he would pity it, and would come to its relief.
And behold, and visit this vine - It is a visitation of mercy and not of wrath that is asked; the coming of one who is able to save, and without whose coming there could be no deliverance.