Because
Happy the poor in spirit – because theirs is the reign of the heavens.
Happy the mourning – because they shall be comforted.
Happy the meek – because they shall inherit the land.
Happy those hungering and thirsting for righteousness – because they shall be filled.
Happy the kind – because they shall find kindness.
Happy the clean in heart – because they shall see God.
Happy the peacemakers – because they shall be called Sons of God.
Happy those persecuted for righteousness' sake – because theirs is the reign of the heavens.
Happy are ye whenever they may reproach you, and may persecute, and may say any evil thing against you falsely for my sake – rejoice ye and be glad, because your reward [is] great in the heavens, for thus did they persecute the prophets who were before you.