What is the biblical reason for marriage and how does it shape the institution of marriage in modern society?

The biblical reason for marriage is to create a lifelong partnership between a man and a woman, based on love, commitment, and mutual support. This shapes the institution of marriage in modern society by emphasizing the importance of fidelity, respect, and the sanctity of the marital bond. It also provides a foundation for family life and the raising of children within a stable and nurturing environment.