Mark 10:8 – “and the two will become one flesh. So they are no longer two, but one flesh.”
Extended Explanation
In this verse, Jesus continues quoting from Genesis 2:24 to explain the meaning of marriage as God intended. The phrase “the two will become one flesh” is foundational to the biblical understanding of marriage. It describes the profound union between a husband and wife—not just a physical bond but an emotional, spiritual, and relational joining. This “oneness” is not temporary or superficial. Instead, it represents a permanent and covenantal relationship where two individuals are so united that their lives are inseparably intertwined.
Jesus clarifies that once a man and woman are married, they are no longer two separate individuals living for themselves. They are now “one flesh,” symbolizing complete unity in purpose, love, and life. Marriage, according to Jesus, is not something to be dissolved casually but a sacred, lifelong union that mirrors God’s plan for humanity.
Historical Context
The concept of “one flesh” comes from the ancient creation story in Genesis, where God forms Eve from Adam’s side and declares that the two are meant to be united as one. In the ancient world, marriage was viewed primarily as a means of creating families and continuing family lines. However, the biblical view of marriage went deeper, emphasizing companionship, intimacy, and unity.
By Jesus’ time, many in Jewish culture had strayed from this ideal, viewing marriage as a contractual arrangement that could be dissolved through divorce. The Pharisees were asking Jesus about the legality of divorce, but His response goes back to the beginning to show that God never intended for marriage to be broken. The idea of “one flesh” wasn’t just a nice metaphor—it was a divine reality meant to be honored and protected.
Theological Implications
This verse reveals the sacredness of marriage in God’s eyes. The union of a man and woman is more than a social agreement—it is a God-ordained bond that reflects His design for human flourishing. The phrase “one flesh” also highlights the exclusivity and permanence of marriage. Just as the body is a unified whole, so too is a marriage meant to be indivisible.
On a deeper level, the unity of marriage points to God’s covenant with His people. Just as a married couple is bound together in a lifelong relationship, God binds Himself to His people through His covenant promises. Theologically, this verse calls us to honor marriage as a reflection of God’s faithfulness and love. It also teaches us about the importance of unity, forgiveness, and reconciliation within marriage, since the “oneness” cannot survive without mutual commitment and grace.
Literary Analysis
The repetition of the phrase “one flesh” serves to emphasize its significance. The fact that Jesus quotes it directly from Genesis shows that this idea is central to understanding God’s purpose for marriage. The contrast between “two” and “one” highlights the transformation that takes place in marriage: two individuals come together to form a new, united identity.
The literary structure of the passage builds on this idea of unity. In the context of the Pharisees’ question about divorce, the statement that a married couple is “no longer two, but one flesh” sets the stage for Jesus’ declaration in the next verse that what God has joined together should not be separated. The progression from creation to covenant to commandment demonstrates the depth and permanence of God’s design for marriage.
Biblical Cross-References
- Genesis 2:24 – “That is why a man leaves his father and mother and is united to his wife, and they become one flesh.”
- Ephesians 5:31-32 – “For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh. This is a profound mystery—but I am talking about Christ and the church.”
- 1 Corinthians 6:16 – “Do you not know that he who unites himself with a prostitute is one with her in body? For it is said, ‘The two will become one flesh.’” This highlights the seriousness of sexual intimacy and its connection to the concept of “one flesh.”
- Malachi 2:15 – “Has not the one God made you? You belong to him in body and spirit. And what does the one God seek? Godly offspring. So be on your guard, and do not be unfaithful to the wife of your youth.”
These passages reinforce the idea that marriage is not only a physical union but a spiritual one, designed to reflect God’s covenant and produce godly relationships.
What This Verse Means for Today’s Christian
For Christians today, this verse challenges us to view marriage as a sacred covenant rather than a temporary or conditional arrangement. The idea of “one flesh” means that marriage requires selflessness, commitment, and a willingness to work through challenges. It is a call to prioritize the health of the relationship and to seek unity in all aspects of life—emotional, physical, and spiritual.
This verse also has implications for sexual purity. The act of becoming “one flesh” is sacred, and God intended it to take place within the covenant of marriage. Outside of marriage, sexual intimacy can lead to brokenness and separation, but within marriage, it is a source of unity and blessing.
For those who have experienced broken marriages or relationships, this verse offers hope. While God’s ideal is for marriage to be permanent, His grace is available to heal and restore those who turn to Him.
How This Verse Relates to a Loving God
God’s love is at the heart of His design for marriage. The concept of “one flesh” reflects His desire for deep, loving relationships that mirror His own faithfulness to His people. Just as God never abandons His covenant with us, marriage is meant to be a place of lasting love and commitment.
Even when human relationships fall short, God’s love remains constant. His plan for marriage is not meant to be a burden but a blessing, providing companionship, security, and a reflection of His divine love. Through His grace, He helps couples navigate difficulties and grow in their unity.
How This Verse Connects to Jesus Christ
Jesus Christ is the ultimate example of what it means to be united in love and commitment. His relationship with the Church is often described as a marriage, with Christ as the bridegroom and the Church as His bride (Ephesians 5:25-27). Just as a husband and wife are meant to become “one flesh,” believers are united with Christ in a relationship that is intimate, loving, and eternal.
Through His sacrifice on the cross, Jesus demonstrated the selfless love that is necessary for true unity. His death and resurrection made it possible for us to be reconciled to God and to experience the kind of deep, lasting relationships that reflect His love. For married couples, Jesus’ example serves as a model of sacrificial love and forgiveness.
Questions for Reflection and Discussion
- What does it mean to become “one flesh” in marriage, and how does this affect the way couples interact with each other?
- How can Christians prioritize unity in their marriages, especially during times of conflict or hardship?
- What role does selflessness play in maintaining a healthy, God-honoring marriage?
- How does understanding God’s design for marriage influence the way we approach relationships outside of marriage, including dating and friendships?
- In what ways does Jesus’ love for the Church serve as a model for love within marriage?
- How can God’s grace help restore unity in marriages that have experienced division or brokenness?