John 4:35

Say not YE, There are yet four months and the harvest cometh? He again taketh occasions of His Discourse from the time and event, and from the grosser things of sense He fashioneth His declaration of spiritual ideas. For it was yet winter at that time, and the tender sprouting and fresh stalk of the seed was scarce bristling forth from the soil: but after the expiration of four months, it was awaiting its fall into the hand of the reaper. Do not therefore YE men say (saith He) that there are yet four months, and the harvest cometh?

For which reason the Lord declared to the disciples: "Behold, I say unto you, Lift up your eyes, and look upon the districts (regiones), for they are white [already] to harvest. For the harvest-man receiveth wages, and gathereth fruit unto life eternal, that both he that soweth and he that reapeth may rejoice together. For in this is the saying true, that one soweth and another reapeth. For I have sent you forward to reap that whereon ye bestowed no labour; other men have laboured, and ye have entered into their labours." Who, then, are they that have laboured, and have helped forward the dispensations of God? It is clear that they are the patriarchs and prophets, who even prefigured our faith, and disseminated through the earth the advent of the Son of God, who and what He should be: so that posterity, possessing the fear of God, might easily accept the advent of Christ, having been instructed by the prophets.

Behold I say unto you, Lift up your eyes and look on the fields, for they are white already to harvest. That is, raising up the eye of your understanding a little from the affairs of the earth, consider ye the spiritual sowing, that it hath progressed already and whitened unto the floor, and at length calls for the reaper's sickle unto itself. But from the similarity to things in actual life, you will see what is meant. For you will conceive that the spiritual sowing and multitude of spiritual ears, are they who, tilled beforehand by the voice of the Prophets, are brought to the faith that should be shown through Christ. But it is white, as being already ripe and ready to the faith, and confirmed unto piety. But the sickle of the reaper is the glittering and most sharp word of the Apostle, cutting away the hearers from the worship according to the law, transferring them to the floor, that is, to the Church of God: there they bruised and pressed by good toils shall be set forth pure wheat worthy of the garner of Him Who gathereth it.