Question: "How does the Bible define a good Christian family?"
Answer: A good Christian family is one which lines up with biblical principles and one in which each member understands and fulfills his or her God-given role. The family is not an institution designed by man. It was created by God, and man has been given the responsibility of stewardship over it. The basic biblical family unit is comprised of one man, one woman—his spouse—and their offspring or adopted children. The extended family can include relatives by blood or marriage such as grandparents, nieces, nephews, cousins, aunts and uncles. One of the primary principles of the family unit is that it involves a commitment ordained by God for the lifetime of the members. The husband and wife are responsible for holding it together, the current attitude of our culture notwithstanding. Although divorce is sought and granted much too easily in our society, the Bible tells us that God hates divorce (Malachi 2:16).
Ephesians 5:22-26 provide the guidelines for husbands and wives in a good Christian family. The husband is required to love his wife as Christ loved the church, and a wife should respect her husband and willingly submit to his leadership in the family. The husband's leadership role should start with spiritual matters and then flow to instructing and teaching both his wife and their offspring scriptural values, leading the family into biblical truth. Of course, the first requirement for the members of a good Christian family is that they all be Christians, having a true relationship with Jesus Christ as their Lord and Savior. Fathers are instructed to bring up their children in the training and instruction of the Lord (Ephesians 6:4). A father is also to provide for his family. If he does not, he “denies the faith and is worse than an unbeliever” (1 Timothy 5:8). So a man who makes no effort to provide for his family cannot rightly call himself a Christian. This does not mean that the wife cannot assist in supporting the family—Proverbs 31 demonstrates that a godly wife may surely do so—but providing for the family is not primarily her responsibility; it is her husband’s.
Woman was given to man for the purpose of being her husband’s helper (Genesis 2:18-20) and to bear children. Husband and wife are to remain faithful to one another for a lifetime. This eliminates the cultural view that divorce, living together without being married, and same-sex marriage are acceptable in God’s eyes. Sexuality expressed according to biblical standards is a beautiful expression of love and commitment. Outside of marriage, it is sin. God declares equality of worth in that all people, men and women, are created in God's image and likeness, and are therefore equally valuable in His eyes. This does not mean, however, that men and women have identical roles in life. Women are more adept at nurturing and caring for the young, while men are better equipped to provide for and protect the family. Thus, they are equal in status, but each has a different role to play.
Children are given two primary responsibilities in the family: to obey their parents and to honor them (Ephesians 6:1-3). Obeying parents is the duty of children until they reach adulthood, but we are to honor our parents for a lifetime. God promises His blessings on those who honor their parents.
When a husband, wife and children all fulfill their God-appointed roles in the family, when they have all committed their lives to Christ and to His service, then peace and harmony will reign in the home. But if we try to have a good Christian family without Christ as Head, or without adhering to the biblical principles the Lord has lovingly provided for us, we will fail.