God's plan for marriage and the family: God who created man out of love also calls him to love. The source of love in the Trinity. The "one flesh" union between man and woman and the nuptial meaning of the body. Be fruitful and multiply. The effects of the Fall on human love. Marriage under the Torah. God's love for Israel. Jesus' teaching on marriage. Free, total, faithful and fruitful love. The two dimensions of love: unity and procreation. Consecrated celibacy and virginity. Chastity and purity of heart.