The purpose of God for Christian marriage is that a husband and wife become one flesh. The concept of being one flesh touches every aspect of the life of the couple. In an age that values independence, this may be a challenge to many. To become one flesh demands the sacrifice of personal rights. It requires a selfless consideration of another person and a willingness to offer time, energy and resources to bless and lift them up. It demands that each partner hold fast to each other in a lifelong commitment of sacrificial love and devotion. In this study we will examine a variety of Bible passages that speak about what it means to be one flesh in a Christian marriage.