5 “Who redeems your life from corruption”. Behold, “the body which is corrupted, weighs down the soul.” The soul then has life in a corruptible body. What sort of life? It suffers burdens, it bears weights. How great obstacles are there to thinking of God Himself, as it is right that men should think of God, as if interrupting us from the necessity of human corruption? How many influences recall us, how many interrupt, how many withdraw the mind when fixed on high?
What a crowd of illusions, what tribes of suggestions? All this in the human heart, as it were, teems with the worms of human corruption. We have set forth the greatness of the disease, let us also praise the Physician. Shall not He then heal you, who made you such as to be in health, had you chosen to keep the law of health which you had received?...First think of your own health. Sometimes a man is stricken in his own house, on his bed, with a more than usually manifest disorder; although this disorder too, which men dislike to contemplate, be plain; yet each man may be attacked with that sickness for which human physicians are sought, and may gasp with fever in his bed; perhaps he may wish to consider of his domestic affairs, to make some order or disposition relating to his estate or his house; at once he is recalled from such cares by the anxiety of his friends, plainly expressed around him, and he is advised to dismiss these subjects, and first to take thought for his health.
This then is addressed unto you, and to all men: if you are not sick, think of other things: if your very infirmity prove you sick, first take heed of your health. Christ is your health: think therefore of Christ. Receive the cup of His saving Health, “who heals all your infirmities;” if you shall choose, you shall gain this Health....For your life has been redeemed from corruption: rest secure now: the contract of good faith has been entered upon; no man deceives, no man circumvents, no man oppresses, your Redeemer. He has here made a barter, He has already paid the price, He has poured forth His blood. The only Son of God, I say, has shed His blood for us: O soul, raise yourself, you are of so great price....“He redeems your life from corruption.”
Source: The Enarrations, or Expositions, on the Psalms (New Advent)