This study shows that the Bible insists above all on the reality of the commitment between man and woman rather than on a single, universal administrative form. Modern legal structures — civil marriage, PACS, concubinage — did not exist in their present form in biblical times. The way of making a union official has, moreover, evolved considerably over the centuries and continues to vary according to cultures and legislations.
1- The fundamental biblical principles
Under these conditions, the essential question lies less in the administrative status itself than in respect for the fundamental biblical principles:
- Faithfulness and exclusivity — a commitment reserved for one person only;
- Durability — a covenant designed for an entire lifetime;
- Mutual responsibility — reciprocal support in every aspect of life;
- Sincerity before God — an upright heart and a pure intention;
- Public recognition — a union openly acknowledged before men.
The Scriptures emphasize the truth of the heart and faithfulness to the covenant (Genesis 2.24; Matthew 19.5-6). Jesus himself reproached the religious leaders of his time for having multiplied human rules at the expense of the spirit of the Law (Mark 7.6-13).
2- Marriage: the form of union most in keeping with the Scriptures
However, we must acknowledge that marriage remains today the clearest form of union, the most publicly recognized, and the one least open to confusion.
The term “concubinage” covers very diverse realities: unstable relationships, temporary arrangements, but also sincere and lasting commitments. This ambiguity makes it hard to reconcile with the biblical requirement of clarity and public witness. Likewise, the PACS is above all a civil legal framework, originally designed for situations distinct from traditional marriage, and does not guarantee respect for scriptural principles.
3- Obedience to the laws: a biblical imperative
The Bible explicitly urges us to respect the laws established by the authorities:
“Let every person be subject to the governing authorities; for there is no authority except from God.”
— Romans 13.1
“Submit yourselves, for the Lord’s sake, to every authority instituted among men.”
— 1 Peter 2.13
In France, marriage is the legal institution that officially consecrates the union of a man and a woman in a public, solemn and binding framework. The other forms of union — free union, concubinage, PACS — were designed to meet other situations and are addressed to other categories of people. They depart from the objectives set by the Scriptures: an exclusive, definitive and public covenant between a man and a woman (Genesis 2.24; Hebrews 13.4).
4- Marriage: the path to favor
Thus, given this twofold imperative — to respect the divine principles and to submit to the laws of the country — marriage appears as the only option that fully meets the biblical criteria.
This is why we strongly encourage Christian couples to choose the path of marriage. Not out of legalism or social conformity, but because this covenant best reflects God’s design for man and woman. Marriage offers a clear, public and solemn framework that honors God, protects the couple and bears witness before men to the beauty of faithful commitment.
The apostle Paul, moreover, raises marriage to the rank of a sacred mystery, an image of the union between Christ and the Church:
“Therefore a man shall leave his father and his mother and be joined to his wife, and the two shall become one flesh. This mystery is great; but I speak concerning Christ and the Church.”
— Ephesians 5.31-32
By choosing marriage, the Christian couple does not merely comply with a formality: it performs an act of faith, a visible testimony of its commitment before God and before men.
5- A kindly invitation
This study does not claim to condemn those who live in different situations, nor to settle definitively a subject on which opinions remain divided within the Christian world. Every journey is unique, and God knows hearts.
However, for those who seek to honor God in their life as a couple, marriage remains the surest, the clearest and the most Scripture-conforming path. It is a path of blessing that we encourage you to take with joy and confidence.
For beyond legal frameworks, God looks above all at the heart: the sincerity, faithfulness and truth of human commitment (1 Samuel 16.7).