What is the biblical purpose of marriage according to 1 Corinthians?

According to 1 Corinthians 7:2, Paul states, 'Nevertheless, to avoid fornication, let every man have his own wife, and let every woman have her own husband.' This instruction reveals that marriage serves a divine purpose in providing a context for sexual relations as designed by God, ensuring that such unions honor His creation. Moreover, the mutual obligations within marriage, as stated in 1 Corinthians 7:3-4, emphasize that it is a partnership where both spouses yield their bodies to one another. This relationship models the sacrificial love of Christ for His church and illustrates the commitment and sanctity God intends for marital unions, further establishing marriage as a covenantal responsibility and a source of fulfillment.