miracle of grace.

"O Ephraim, what more have I to do with idols? I will answer him and care for him. I am like a green pine tree; your fruitfulness comes from me." ~ Hosea 14:8

Neither the pine nor the cypress bear any fruit, useful for food. It is probable then that here too the prophet fills out one image by another and says that restored Israel, the Church of God, or the soul in grace, should not only have beauty and majesty, but what is not, in the way of nature, found united therewith, fruitfulness also. From Me is thy fruit found; as our Lord says, "I am the vine, ye are the branches" John 15:5. Human nature, by itself, can as little bear fruit well-pleasing to God, as the pine or cypress can bear fruit for human use. As it were a miracle in nature, were these trees to bring forth such fruit, so, for man to bring forth fruits of grace, is a miracle of grace. The presence of works of grace attests the immediate working of God the Holy Spirit, as much as any miracle in nature.

Taken from Barnes' notes on the Bible.