6 What are the means whereby He “binds up their bruises”? Just as physicians bind up fractures. For sometimes (observe this, beloved; it is well known to those who have observed it, or have heard it from physicians), sometimes when limbs are sound, but are crooked and distorted, physicians break them in order to set them straight, and make a new wound, because the soundness which was distorted was amiss....
Source: The Enarrations, or Expositions, on the Psalms (New Advent)