For this cause shall a man leave his father and mother, and shall be joined unto his wife, and they two shall be one flesh.
Paul, writing to the early church in Ephesus — a major city in what is now western Turkey — quotes directly from Genesis 2:24, the very first description of marriage in the Bible. God had just created Eve as a companion for Adam, and the original text explains that this is why marriage involves a profound 'leaving' of one's family of origin and a 'uniting' with a spouse. The phrase 'one flesh' isn't only about physical intimacy — it speaks to a deep merging of lives, loyalties, and identities. Paul is affirming that this ancient design from creation still defines the pattern for marriage in the Christian community.
Lord, marriage is harder and holier than I usually let myself admit. Whether I am married, single, or somewhere in between, shape in me a vision of love that actually costs something — love that leaves cleanly, unites fully, and holds on. Amen.
'Leaving and cleaving' sounds straightforward until you're actually trying to do it. It turns out that leaving your family of origin is less about geography and more about allegiance. Plenty of married people have moved across the country but still make major decisions based on what mom would think, still define themselves primarily by the role they played in the family they grew up in, still haven't finished the slow emotional work of becoming a separate person who then chooses a partner — fully, not provisionally. And 'one flesh' carries enormous weight. Two lives genuinely merging isn't a metaphor for a pleasant partnership or compatible personalities. It's an invitation into something costly and transforming — built not in the wedding ceremony but in ten thousand ordinary moments after it: the argument you worked through at midnight instead of walking away, the dream you adjusted to make room for someone else's, the way you showed up when it cost you something real. If you're married, what would it mean to take 'one flesh' seriously this week — not as theology, but as a Tuesday-morning practice?
Why do you think the Bible frames 'leaving' one's family as the very foundation of marriage — what does that tell you about how seriously it takes the new bond being formed?
In what ways — emotionally, relationally, or practically — might someone be legally married but not yet fully 'left' their family of origin?
Does the concept of 'one flesh' feel idealistic, beautiful, daunting, or something else entirely to you right now, and why?
How does the design of marriage described here affect the way you treat your spouse or future spouse — and the way you treat other couples around you?
If you are married: what is one specific, concrete thing you could do this week to move toward deeper unity — not romance, but real 'one flesh' partnership in the gritty, everyday sense?
And said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh?
Matthew 19:5
And they twain shall be one flesh: so then they are no more twain, but one flesh.
Mark 10:8
So ought men to love their wives as their own bodies. He that loveth his wife loveth himself.
Ephesians 5:28
For no man ever yet hated his own flesh; but nourisheth and cherisheth it, even as the Lord the church:
Ephesians 5:29
Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.
Genesis 2:24
For this cause shall a man leave his father and mother, and cleave to his wife;
Mark 10:7
For this reason a man shall leave his father and his mother and shall be joined [and be faithfully devoted] to his wife, and the two shall becomeone flesh.
AMP
“Therefore a man shall leave his father and mother and hold fast to his wife, and the two shall become one flesh.”
ESV
FOR THIS REASON A MAN SHALL LEAVE HIS FATHER AND MOTHER AND SHALL BE JOINED TO HIS WIFE, AND THE TWO SHALL BECOME ONE FLESH.
NASB
“For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh.”
NIV
“For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh.”
NKJV
As the Scriptures say, “A man leaves his father and mother and is joined to his wife, and the two are united into one.”
NLT
And this is why a man leaves father and mother and cherishes his wife. No longer two, they become "one flesh."
MSG