What does "one flesh" mean?

The Scriptural Definition of One Flesh

The scriptural definition of "one flesh" is found in Genesis 2:24, which states, "For this reason a man shall leave his father and mother and be joined to his wife, and they shall become one flesh." This definition serves as the basis for the concept of one flesh in the biblical context.

The Unity of Substance and Personal Union

The concept of one flesh refers to the unity of substance and personal union between a man and woman in marriage. It is not meant to imply that they become one person, but rather that they become one in the unity of their substance and are considered as a single organism. This unity is not limited to physical intimacy, but encompasses all aspects of their lives.

The Illustration of Spiritual Union

The concept of one flesh is also used to illustrate spiritual union, as seen in Ephesians 5:31, where Paul says, "For this reason a man shall leave his father and mother and be joined to his wife, and they shall become one flesh. This mystery is a profound one, and I am saying that it refers to Christ and the church." In this context, one flesh represents the spiritual union between Christ and the church, highlighting the depth and intimacy of their relationship. Therefore, the concept of one flesh is multifaceted, encompassing both physical and spiritual dimensions of human relationships.