Matthew 12:49-50, Ephesians 2:19, Psalm 68:6
A New Kind of Family
When Jesus was told that His mother and brothers were outside wanting to speak to Him, He gestured to His disciples and said: "Here are my mother and my brothers! For whoever does the will of my Father in heaven is my brother and sister and mother." (Matthew 12:49-50).
This is a striking moment. Jesus was not dismissing His biological family — but He was establishing the existence of a new family, a family created not by biological ties but by common faith and common commitment to the Father's will. The church is this family.
How the New Testament Describes the Church
The most common relational language in the New Testament letters is family language. Paul addresses his readers as "brothers and sisters" (adelphoi) hundreds of times. He describes his relationship to Timothy as that of a father to a son (1 Corinthians 4:17). He calls the church "the household of God" (Ephesians 2:19). Peter calls believers "the brotherhood" (1 Peter 2:17).
This is not metaphorical window dressing — it is a description of a genuine new social reality. Those who are in Christ are members of God's family together. They share a Father, a Brother, and a Spirit. They are heirs together of the same inheritance.
What Family Means in Practice
Paul's instruction to Timothy about how to treat different members of the congregation is illuminating: "Do not rebuke an older man but encourage him as you would a father, younger men as brothers, older women as mothers, younger women as sisters, in all purity." (1 Timothy 5:1-2).
The relationships of the church are to have the quality of family relationships: warmth, respect, genuine care, the willingness to rebuke and encourage. Not the cool professionalism of an organisation but the warmth and messiness of a family.
For Those Without Family
One of the most powerful implications of the church as family is what it means for those who do not have strong biological families — the single, the widowed, the estranged, the orphaned. For these people, the church is not a supplement to their real family. It is their family.
Paul's description of the church as the body of Christ means that every member belongs, every member is needed, and no member is to be treated as surplus. The church that truly functions as a family will be one of the most important communities in the world for those who have no family elsewhere.
God sets the lonely in families. — Psalm 68:6