The principle of love compels the members of the Kingdom to show mercy. God is full of mercy, therefore, let his followers show mercy. Love forgives. The Christian citizen is instructed to become reconciled with his brother citizen before worshipping at the altar of God.[VIII-6] If the individual would be forgiven of his sins, he must acquire the habit of forgiving other persons. He must be careful not to judge harshly, lest other persons judge him harshly. He should forgive others seventy times seven times, that is, without stint or measure. St. Luke, the physician, recites the story of a loving father. The prodigal son impetuously demanded his share of the inheritance, and going into a far country, wasted his substance in riotous living. But upon showing true remorse for these exceedingly grave offenses, his father received him back with a loving, forgiving heart, a feast, the best robes, and music and dancing. One of the malefactors who was crucified with Christ, showed a penitent heart at the last moment and received forgiveness from the loving, dying Christ. Since no one is without sin, no one has a right to be unforgiving. Even the woman taken in adultery came within the law of forgiving love. The societary principle of love is the major chord of Christianity. It is Christianity’s unscientific but greatest gift to sociology. It has become the fundamental concept of sociology. To the Old Testament type of love which urged the individual to love his neighbor and to love the alien and stranger, Jesus repeatedly insisted upon a love that is still greater, namely, a love which will include enemies. Love your enemies.[VIII-7] Jesus himself exemplified this form of love. He made no idle interpretation of an impossible love, but demonstrated and lived a love which forgave his enemies, even those who mockingly, shamelessly nailed him to a cross. So great is the drawing power of this almost superhuman love which Jesus expressed in deeds that he himself predicted that if he were lifted up he would draw all people unto him. Love fills people with compassion. The Gospels are replete with references to the fact that wherever Jesus saw sickness, poverty, sin, he was moved with compassion. The illustrations range from the blind men by the wayside to the bread-hungry multitudes, from the unclean leper in Galilee to murderous Jerusalem. Love is cosmopolitan. All peoples are entitled to know the meaning of Christian love.[VIII-8] Both Jew and Gentile shall feel its warming glow. The Samaritan lives it. Loving neighborliness includes more than priestly and Levitical acts; it involves Samaritan kindness. The love in the heart of Jesus reached first to a few close friends, then to sinners and outcasts, then to the Samaritans and the Gentiles, and finally to the whole world. It led ultimately to that most unselfish of all human enterprises--the missionary movement.