Then the LORD God said, “It is not good for the man to be alone; I will make him a helper suitable for him.”
So the LORD God caused a deep sleep to fall upon the man, and he slept; then He took one of his ribs and closed up the flesh at that place. The LORD God fashioned into a woman the rib which He had taken from the man, and brought her to the man. The man said, “This is now bone of my bones, and flesh of my flesh; she shall be called Woman, because she was taken out of Man.”
For this reason a man shall leave his father and his mother, and be joined to his wife; and they shall become one flesh. – Genesis 2:18, 21‐24
In these few verses, The Lord reveals more than just an insight into the origins of human life; He establishes His definition of marriage. The Creator implemented His plan to provide Adam with ʺa helper suitable for himʺ – a comparable counterpart for the man – with whom he could accomplish that which he could never do without a fitting partner. Having fashioned Eve out of the very flesh of Adam, rather than from the inanimate materials He used to form the man, the depth and significance of their relationship is emphasized and reinforced. When Adam proclaimed of his wife that she is part of him, he was expressing a literal reality, as well as a marital mindset.
Ultimately, in Genesis 2:24, when God says, ʺfor this reason,ʺ He is stating that marriage itself resulted from (is rooted in) His creation of opposite/complementary genders. Christ Jesus refers to that verse in Matthew 19:4‐6 and Mark 10:6‐9, as He explains that since The Creator made them male and female, a husband is to leave his parents and enter into a life‐long, one‐flesh relationship with his wife. According to Godʹs design, human ʺmaleness and femalenessʺ are inseparable from the Biblical concept of marriage. Moreover, the covenant nature of marriage is also conveyed through the statement that a husband and wife become one flesh. Biblical oneness goes beyond like‐mindedness and physical intimacy; it actively manifests indivisible wholeness. Just as a Biblical covenant is irreversible, so should be our marital oneness.