Thomas Aquinas, on Ps 33:15

“Turn away from evil and do good: seek after peace and pursue it.”

“Then when he says, "The eyes of the Lord are upon the just," he instructs about divine providence. And concerning this he does two things. First, he sets forth divine providence. Second, he shows the effect of divine providence, at "The just cried out." Concerning the first he does two things. First, he proposes divine providence with regard to the good. Second, with regard to the wicked, at "But the face of the Lord." He says therefore, "The eyes of the Lord," etc. To those for whom we have care, we attend in two ways: namely by sight, regarding their deeds; and with regard to this he says, "The eyes of the Lord." And by hearing, regarding their words; and with regard to this he says, "And his ears." And although in God there is neither sight nor hearing, but the very wisdom of God, yet because of the diverse things known, both are said, namely sight and hearing. Sight is signified by the eyes with regard to deeds themselves; hearing, however, by ears with regard to words. Therefore he says, "The eyes of the Lord are upon the just," namely with the look of approval: 2 Tim. 2: "The Lord knows who are his": Sir. 15: "The eyes of the Lord are upon those who fear him," etc. "And his ears," that is, he is attentive to hearing, "are open to their prayers." For he who wishes to hear gladly listens to those who pray; hence by this he signifies that he is willing to hear. And he says, "To their prayers," because while they are still speaking he hears: Is. 65: "While they are still speaking, I will hear."”

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