John Calvin Commentary Psalms 80:14

"Turn again, we beseech thee, O God of hosts: Look down from heaven, and behold, and visit this vine," — Psalms 80:14 (ASV)

Return, I beseech thee, O God of Hosts! In these words, the intention is to teach that we should not yield to temptation, even if God should hide His face from us for a time; indeed, even if to outward appearances and human reasoning He might seem to be alienated from us.

For, if He is sought in the confident expectation of His showing mercy, He will become reconciled and receive into His favor those whom He seemed to have cast off. It was a distinguished honor for the seed of Abraham to be considered the vineyard of God; but while the faithful bring forward this consideration as an argument for obtaining the favor of God, instead of presenting any claims of their own, they only implore Him not to cease exercising His accustomed liberality towards them.

The words, from heaven, were, no doubt, introduced so that the faithful would find no difficulty in extending their faith to a distance, even though God, from whom they had departed, was far from them; and, furthermore, so that if they saw no prospect of deliverance on earth, they could lift up their eyes to heaven.

Regarding the word כנה, cannah, in the beginning of verse 15, I readily agree with the meaning given to it by some who translate it as a place prepared; However, some think that there is a change in the Hebrew word from the letter ג, gimel, to כ, caph, which would result in the reading גנה, gannah, a garden or vineyard. In this matter, we leave the reader to judge for themselves. It is, however, certain that this is a metaphor similar to the former one, which denotes the singular liberality of God in advancing this people and causing them to prosper. The vine-branch which was planted by the hand of God is also called the Man of His right hand.