David Turner:
The Beatitudes reveal key character traits that God approves in his people. These character traits are gracious gifts indicating God’s approval, not requirements for works that merit God’s approval. Those who repent receive these character traits in principle but must cultivate them in the process of discipleship. The qualities that God does approve are explained in two sets of four that respectively describe relating to God and relating to other people (see also Matthew 22:37-40). God approves those who relate to him by admitting their spiritual poverty and mourning over sin and oppression, humbly seeking spiritual fullness (Matthew 5:3-6). God approves those who relate to others mercifully and purely as peacemakers, even as though they may be persecuted for their righteous behavior (Matthew 5:7-12). At first this may sound like a sadistic joke, appealing only to those who enjoy pain. Jesus appears to be saying that those who are unhappy are happy. But in reality Jesus is showing the error of superficial, self-centered living. His biblical realism establishes the values that lead to true bliss and ultimate comfort for his followers.
Matthew 5:3-10:
"“Blessed are the poor in spirit, for theirs is the kingdom of heaven.
“Blessed are those who mourn, for they shall be comforted.
“Blessed are the meek, for they shall inherit the earth.
“Blessed are those who hunger and thirst for righteousness, for they shall be satisfied.
“Blessed are the merciful, for they shall receive mercy.
“Blessed are the pure in heart, for they shall see God.
“Blessed are the peacemakers, for they shall be called sons of God.
“Blessed are those who are persecuted for righteousness’ sake, for theirs is the kingdom of heaven.(Mt 5:3-10)."