Thomas Aquinas, on Ps 25:11

“But as for me, I have walked in my innocence: redeem me, and have mercy on me.”

“Consequently he describes himself, saying, "But I have walked in my innocence"; as if to say, I ask this so that, just as you prepare evils for them, so you may prepare goods for me, as Ps. 83 says: "He will not deprive of good things those who walk in innocence." Consequently he asks to be freed from present evils. The evils that befall a man can be twofold; for they are either external evils, and from these he asks to be redeemed: hence he says, "Redeem me," as a slave from the evils that oppress me. Or concerning the redemption of the human race. Or they are interior evils, and from these he asks to be freed; hence he says, "Have mercy on me," because mercy properly regards interior evil: Prov. 14: "Sin makes peoples wretched."”

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