Augustine of Hippo

"Their infirmities have been multiplied" [Psalm 16:4]: their infirmities have been multiplied not for their destruction, but that they might long for the Physician. "Afterwards they made haste." Accordingly after infirmities multiplied they made haste, that they might be healed. "I will not gather together their assemblies by blood." For their assemblies shall not be carnal, nor will I gather them together as one propitiated by the blood of cattle. …

Exposition on Psalm 16 ↗

Jerome

Their infirmities have been multiplied; afterward they made haste. Whose infirmities have been multiplied? Surely those of the saints who above are recorded as being in the land of the Lord. When they were foolish, unbelieving, straying, and serving various desires and pleasures, passing their lives in greed and envy, their infirmities were being multiplied. But when they were washed and were sanctified and, turned to repentance, abandoned their past sins, then they made haste. …

Homily 61, on Psalm 15 ↗

Thomas Aquinas

"I will not." Here he sets forth the manner of conversion. And first he shows to what rite they are converted; second, how perfectly, at "Nor will I be mindful," etc. He says, therefore, "They hastened." But how will they be converted? In the Old Law, those who were converted offered various sacrifices. But I will gather from diverse parts to the faith; but not so that they may shed blood: because, as the Apostle says in Heb. …

Exposition on the Psalms of David ↗