Luke 20:10

But it is rightly written fruit, not increase. For there was no increase in this vineyard. The first servant sent was Moses, who for forty years sought of the husbandmen the fruit of the law which he had given, but he was wroth against them, for they provoked his spirit. Hence it follows, But they beat him, and sent him away empty.

He says of the fruit of the vineyard, because not the whole fruit, but part only, He wished to receive. For what does God gain from us, but His own knowledge, which is also our profit.

Or God took Himself away from the vineyard for the course of many years, for since the time that He was seen to descend in the likeness of fire upon Mount Sinai, He no longer vouchsafed to them His visible presence; though no change took place, in which He sent not His prophets and righteous men to give warning thereof; as it follows, And at the time of the vintage he sent a servant to the husbandmen, that they should give him of the fruit of the vineyard. (Exod. 19.)

(in Marc. 12.) Or understanding it morally; to every one of the faithful is let out a vineyard to cultivate, in that the mystery of baptism is entrusted to him to work out. One servant is sent, a second and a third, when the Law, the Psalms, and the Prophets are read. But the servant who is sent is said to be treated despitefully or beaten, when the word heard is despised or blasphemed. The heir who is sent that man kills as far as he can, who by sin tramples under foot the Son of God. (Heb. 6:6.) The wicked husbandman being destroyed, the vineyard is given to another, when with the gift of grace, which the proud man spurned, the humble are enriched.