“Blessed are those who mourn, for they will be comforted.”
Matthew 5: 1-12, the Beatitudes, ct.
Again, knowing history here helps to understand how the Israelites mourned. But to keep it simple, here Jesus was announcing that the world was the way it was with horrible oppression tyranny because of sin and that the heavy hearts of people would be comforted. Again, Jesus didn't come to blast the "bad" people away but to offer a new way of living in this world. Jesus came to announce that weeping and crying and sorrow would not last. And so Jesus was focusing on the "focus of the mourning" and not the mourning itself. As we face sadness in life, we can do so with the hope that if we mourn over sin - it's a clear sign of our faith in the Savior - of the kingdom to come where there is no pain, or suffering or sin.