13 “O fear the Lord, all you His saints, for there is no want to them that fear Him”. For many therefore will not fear God the Lord, lest they suffer hunger. It is said to them, Defraud not; and they say, Whence can I feed myself? No art can be without imposture; no business can be without fraud. But fraud God punishes: fear God. But if I should fear God, I shall not have whence to live. “O fear the Lord, all you His saints, for there is no want to them that fear Him.”
He promises plenty to him that trembles, and doubts, lest haply if he should fear God, he should lose things superfluous. The Lord fed you despising Him, and will He desert you fearing Him? Attend, and say not, Such an one is rich, and I am poor. I fear the Lord, he by not fearing how much has he gained, and I by fearing am bare! See what follows; “The rich do lack and suffer hunger, but they that seek the Lord shall not want any good thing”. If you receive it according to the letter, He seems to deceive you, for you see that many rich men that are wicked die in their riches, and are not made poor while they live; you see them grow old, and come even to the end of life amid great abundance and riches.
You see their funeral pomp celebrated with great profusion, the man himself brought rich even to the sepulchre, having expired in beds of ivory, his family weeping around; and you say in your mind, if haply you know some both sins and crimes done by him: I know what things that man has done; lo, he has grown old, he has died in his bed, his friends follow him to the grave, his funeral is celebrated with all this pomp; I know what he has done; the Scripture has deceived me, and has spoken falsely, where I hear and sing; “The rich do lack and suffer hunger.”
When was this man in need? When did he suffer hunger? “But they that seek the Lord shall not want any good thing.” Daily I rise up to Church, daily I bend the knee, daily I seek the Lord, and have nothing good: this man sought not the Lord, and he has died in the midst of all these good things! Thus thinking, the snare of offense chokes him; for he seeks mortal food on the earth, and seeks not a true reward in heaven, and so he puts his head into the devil's noose, his jaws are tied close, and the devil holds him fast unto evil doing, that so he may imitate the evil men, whom he sees to die in such plenty.
Source: The Enarrations, or Expositions, on the Psalms (New Advent)