Joel 2:22

David said that "the Lord would reign from the tree." Elsewhere too the prophet predicts the fruit of this tree, saying, "The earth has given its blessings"—of course that virgin earth, not yet irrigated with rains or fertilized by showers, out of which humanity was of old first formed, out of which now Christ through the flesh has been born of a virgin. "And the tree bears its fruit"—not that tree in paradise, which yielded death to the first humans, but the tree of the passion of Christ, whence life, hanging, you did not believe!

For the fig tree, on account of its sweetness and richness, represents the delights of humankind, which they had in paradise before the Fall. Indeed, not rarely, as we shall afterwards show, the Holy Spirit takes the fruit of the fig tree as an emblem of goodness. But the vine, on account of the gladness produced by wine and the joy of those who were saved from wrath and from deluge, signifies the change produced from fear and anxiety into joy. Moreover, the olive, on account of the oil which it produces, indicates the compassion of God, who again, after the deluge, bore patiently when people turned aside to ungodliness, so that he gave them the law and manifested himself to some, and nourished by oil the light of virtue, now almost extinguished.

(Verse 22 onwards) Do not be afraid, O land; rejoice and be glad, for the Lord has done great things. Do not fear, you animals of the field, for the pastures in the wilderness are becoming green. The trees are bearing their fruit; the fig tree and the vine yield their riches. Be glad, O children of Zion, and rejoice in the Lord your God, for he has given you the autumn rains for your vindication. He sends you abundant showers, both autumn and spring rains, as before. The threshing floors will be filled with grain; the vats will overflow with new wine and oil. I will repay you for the years the locusts have eaten— the great locust and the young locust, the other locusts and the locust swarm — my great army that I sent among you. My strength is great, which I have sent upon you: and you will eat in plenty, and be satisfied, and praise the name of your God, who has worked wonders with us, and my people will not be put to shame forever. And you will know that I am in the midst of Israel, and I am the Lord your God, and there is no other, and my people will not be put to shame forever. Rejoice, O earth, and be glad and rejoice, for the Lord has magnified and done great things: believe, O animals of the field, for the meadows of the wilderness have put forth their greenery, because the tree has produced its fruit, the fig tree and the vine have given their strength. And the children of Zion, rejoice and be glad in the Lord your God, for He has given you the food of righteousness, and has showered upon you a timely and late rain, as in the beginning, and the barns will be filled with wheat, and the vats will overflow with wine and oil. And I will compensate you for the years in which the locust, the beetle, the mildew, and the caterpillar have consumed your crops. My great strength, which I have sent upon you, will sustain you and you will eat and be satisfied. You will praise the name of your God, who has done wonders with you, and my people will never be put to shame. You will know that I am in the midst of Israel, and I am the Lord your God, and there is no other besides me. And my people will never be put to shame. He now promises the opposite of what he had threatened above. He had said before: the fire consumes the beautiful things of the desert, and the flame sets ablaze all the wood of the region, and the beasts of the field, like a dry patch of land, look…