God wills “all men to be saved and to come to the knowledge of the truth” (1 Tim 2:4). The “kingdom of God” begins in those who allow themselves to be transformed by God’s love. In Jesus’ experience these are above all the poor and lowly. [541-546, 567]
Even people unaffiliated with the Church find it fascinating that Jesus, with a sort of preferential love, turns first to those who are socially marginalized. In the Sermon on the Mount, it is the poor and the sorrowing, the victims of persecution and violence, all those who seek God with a pure heart, all who seek his mercy, his justice, and his peace, who have prior access to the kingdom of God. Especially invited are sinners also: “Those who are well have no need of a physician, but those who are sick; I came not to call the righteous, but sinners” (Mk 2:17).