Thomas Aquinas, on Job 18:6

“The light shall be dark in his tabernacle, and the lamp that is over him, shall be put out.”

“We should note that the prosperity of man's success comes from two causes. Sometimes it comes from human providence, for example, when a man prudently and carefully orders each and every thing. As to this cause he says of the end of this prosperity, "The light will grow dark in the tent of that man?" because both he and his household will lack prudence in their decisions. Sometimes however, the prosperity of a man's success comes from a higher cause, from divine providence. He describes the caused of the end of this prosperity saying, "the lamp from above him will be extinguished," not that it does not shine on him, but that it throw light on the evil man. He fittingly describes the providence of man a "light" for it is borrowed from another, but the providence of God as a "lamp" because it gives light in itself. He has premised of the light of divine providence that from the fact that a man loses the light of reason, he seems to merit to not be protected by the light of divine providence.”

Imported from an open dataset — not yet checked against the printed edition.