Blessed are they that mourn: for they shall be comforted.
All Commentaries on Matthew 5:4 Go To Matthew 5
Theophylact of Ochrid
. "Blessed are they that mourn" for their sins, not for things of this life. Christ said, "They that mourn," that is, they that are mourning incessantly and not just one time; and not only for our own sins, but for those of our neighbor. "They shall be comforted" both in this life, for he who mourns for his sin rejoices spiritually, and even more so in the next life.