The Prophet addresses here generally the despisers of God, who were become hardened in their wickedness. But before he openly names them, he says that the visitation would be such, that God would search every corner, so that no place would remain unexplored. For to visit with candles, or to search with candles, is so to examine all hidden places or coverts, that nothing may escape. When one intends to plunder a city, he first enters into the houses, and takes away whatever he finds; but when he thinks that there are some hidden treasures, he descends into the secret cells; and then if there be no light there, he lights a candle, and carefully looks here and there, that he may not overlook anything. By this comparison then God intimates, that Jerusalem would be so plundered, that nothing whatever would remain. Hence he says, I will search it with candles. We indeed know that nothing is hid from God; but it is evident, that he is constrained to borrow comparisons from the common practice of men, because he could not otherwise express what is necessary for us to know. The world indeed deal with God as men do with one another; for they think that he can be deceived by their craftiness. He therefore laughs to scorn this folly, and says, that he would have candles to search out whatever was concealed.