Job 21:11

"And they remain as eternal sheep." What is the meaning of these words? They are those words that Christ spoke, "My sheep hear my voice, and I give them eternal life." The faithful are the eternal sheep; the heretics are imitators. They want to imitate the flock of Christ. They ordain their own bishops, presbyters, deacons, doctors, congregation and catechumens, and by imitating the eternal sheep they fulfill the prediction, "And they appear as eternal sheep." They clearly are not eternal sheep but "appear as eternal sheep."

"And their children play before them, taking up the psaltery and harp." Our children take up the psaltery and the harp, praising and glorifying God. But "their [the heretics'] children," who are foolish in themselves, also "play taking up the psaltery and the harp." Every time they usurp the words of the Old Testament, they play and mock the oracles of the Law and the Prophets. By taking up the harmonies that were once the psaltery of the law and the prophetic harp, they play with them.

Since you believe to be wise and to know the reason why I suffer these afflictions, now answer my question. Why does it happen that very often many impious persons reach an old age in their wealth?… Their fields produce large crops, and they are delighted by their children and enjoy a constant abundance. They fear no one and receive no blow sent them by God. Their plowing cow does not give birth to an immature fetus, that is, it does not generate an imperfect or dead fetus, and their wives have no miscarriages. And they remain in prosperity like a flock, that is, free from care.

Ver. 11. Their little ones go forth like flocks, and their children revel in sports.

48. That as there are greater stores bestowed on them to have the possession of, so great numbers may spring up to keep them safe. But whereas he said, revel in sports, lest we should imagine that the mere sport of the children in the house of the wicked by itself was too mean and poor, he adds, saying.

As a consequence he speaks about the prosperity of the sons, and he first places the great number of the offspring when he says, "They have come forth," namely, walking in the streets and not prevented by death. "Their little ones like flocks," in their great number and their mutual concord. Second, he places their well-being when he says, "and their young dance in play," as though they were not complaining about any illnesses.