THE CHURCHES AS WINEPRESSES.
We . . . take winepresses as referring to the churches, by the same line of reasoning as we understand the threshing floor in terms of the church, because whether on the threshing floor or in the winepress, what happens is that fruit is stripped of its covering. The coverings were necessary for two reasons: that the crop might come to life and that it might reach its maturity whether of the harvest or the vintage. The crop, therefore, is stripped bare of its coverings or supports. Grain is separated from the straw on the threshing floor; grapes are stripped of their skin in the winepress. The same process takes place in our churches, so that through the work of God’s ministers good people may be sifted out by spiritual love from the crowd of worldly people gathered there with them, a crowd that has, nonetheless, been necessary to bring the good to birth and prepared them to receive the divine word.
Expositions of the Psalms 8.1