Methodius of Olympus

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.