St. Bernard, commenting on the Beatitudes, talks about mercy:
|Blessed are the Merciful, Marble relief|
Church of St. Charles Borromeo, Antwerp, Belgium
The sequence of beatitudes given in the Sermon on the Mount places the merciful before the pure in heart. The merciful are those who are quick to see truth in their neighbour; they reach out to others in compassion and identify with them in love, responding to the joys and sorrows in the lives of others as if they were their own. They make themselves weak with the weak, and burn with indignation when others are led astray. They are always ready to share the joys of those who rejoice and the sorrows of those who mourn....
Just as pure truth can only be seen by the pure in heart, so the sufferings of our fellow men and women are more truly felt by hearts that know suffering themselves. However, we cannot sympathize with the wretchedness of others until we first recognize our own. Then we shall understand the feelings of others by what we personally feel, and know how to come to their help. Such was the example shown by our Savior, who desired to suffer himself in order that he might learn to feel compassion, and to be afflicted in order that he might learn how to show mercy. Scripture says of him that he learned the meaning of obedience through what he suffered. In the same way he learned the meaning of mercy. Not that the Lord whose mercy is from age to age was ignorant of mercy’s meaning until then; he knew its nature from all eternity, but he learned it by personal experience during his days on earth.