Luke 15:24

(ut sup.) For the father himself rejoices in the return of his son, and feasts on the calf, because the Creator, rejoicing in the acquisition of a believing people, feasts on the fruit of His mercy by the sacrifice of His Son. Hence it follows, For this my son was dead, and is alive again.

(ubi sup.) Those banquets are now celebrated, the Church being enlarged and extended throughout the whole world. For that calf in our Lord's body and blood is both offered up to the Father, and feeds the whole house.

As then with respect to the condition of his sins, he had been despaired of; so in regard to human nature, which is changeable and can be turned from vice to virtue, he is said to be lost. For it is less to be lost than to die. But every one who is recalled and turned from sin, partaking of the fatted calf, becomes an occasion of joy to his father and his servants, that is, the angels and priests. Hence it follows, And they all began to be merry.

Rightly the flesh of the calf, because it is the priestly victim which was offered for sin. But he introduces him feasting, when he says, Be merry; to show that the food of the Father is our salvation; the joy of the Father the redemption of our sins. He is dead who was. Therefore the Gentiles are not, the Christian is. Here however might be understood one individual of the human race; Adam was, and in him we all were. Adam perished, and in him we all have perished. Man then is restored in that Man who has died. It might also seem to be spoken of one working repentance, because he dies not who has not at one time lived. And the Gentiles indeed when they have believed are made alive again by grace. But he who has fallen recovers by repentance.