It’s More Than Babies
If sex were only about reproduction, God would not have made it pleasurable.
He could have designed it to be mechanical, functional, brief and perhaps biologically efficient.
Instead, He wired it with longing, chemistry, emotional attachment, and deep satisfaction.
That tells us something.
Sex is not evolutionary biology. It is intentional design.
And Scripture shows us it has at least four purposes.
Procreation: Yes, Life Matters
Genesis 1:28 says, “Be fruitful and multiply.”
From the beginning, sex carried creative power. Through it, humanity participates in God’s ongoing work of filling the earth.
There is something sacred about that.
A married couple once told me that holding their newborn changed how they viewed intimacy. “We realized,” the husband said, “that love created this life.”
Modern research confirms the profound emotional impact of becoming parents. A 2019 study in Frontiers in Psychology reported that most new parents experience both heightened emotional bonding and shifts in marital satisfaction – positively and negatively – after a child’s birth. That underscores how deeply sexuality and family creation affect identity and relationships.
But if sex were only about babies, then couples past childbearing age would have no purpose for intimacy. Scripture never suggests that.
Which means there is more.
Pleasure: Yes, God Designed Enjoyment
The Song of Solomon is in the Bible for a reason.
It is poetic, romantic, sensual. It celebrates attraction between husband and wife without apology. Proverbs 5:18–19 even encourages a husband to “rejoice in the wife of your youth” and to be “intoxicated” in her love.
That is strong language.
God did not attach pleasure to sex, as an afterthought. He engineered it.
Neuroscience confirms this design:
- Oxytocin – released during physical affection – promotes stress reduction and emotional closeness.
- Dopamine – the “reward chemical” – rises during sexual arousal and orgasm.
- Endorphins – natural mood lifters – flood the nervous system.
Pleasure is not a design flaw. It is reinforcement.
A 2020 study published in the Journal of Sex & Marital Therapy found that couples who report satisfying sexual relationships also report better overall well-being and emotional connection.
I have counselled married couples who struggle because one partner believes enjoying sex is somehow unspiritual. That quiet guilt often blocks intimacy more than any physical issue.
Holiness is not the absence of pleasure. In marriage, pleasure is stewardship.
Bonding: The “One Flesh” Reality
Genesis 2:24 says a man and woman become “one flesh.”
That phrase is deeper than physical union. It describes bonding.
Science now explains what Scripture declared thousands of years ago.
During sexual intimacy, the body releases oxytocin, often called the “bonding hormone.” It increases trust. It lowers fear. It strengthens attachment. In women especially, oxytocin rises significantly during climax and physical affection. In men, vasopressin plays a similar bonding role, promoting protective and pair-bonding behaviors.
This is not random chemistry. It is covenant wiring.
Sex creates attachment.
This is why casual sex often leaves emotional confusion in its wake. The body bonds even when the commitment does not exist.
I once worked with a young woman who said, “I told myself it was just physical. But I felt connected in ways I didn’t expect.” Her body had bonded faster than her heart had processed.
Sex is not just physical. It is spiritual glue.
When practiced inside covenant, that glue strengthens unity….Outside covenant, it can create fragmentation.
Covenant Renewal: Reaffirming “Us”
1 Corinthians 7 speaks practically about marital intimacy. Paul encourages mutuality, generosity, and attentiveness within marriage.
Sex in marriage is not just desire being satisfied. It is covenant being reaffirmed.
Each time a husband and wife come together in love, they are not just sharing bodies. They are reinforcing promises.
- “I choose you again.”
- “I am still yours.”
- “We are one.”
Healthy couples often describe intimacy as reconnecting after stress, conflict, or distance. Research shows that affectionate touch and sexual intimacy reduce cortisol, the stress hormone. They restore emotional closeness.
God designed intimacy to recalibrate marriages.
It should never be used a weapon, nor a form of manipulation, but as renewal.
Why This Changes Everything
If sex is only biological, then culture defines it.
If sex is covenantal, pleasurable, bonding, and creative, then God defines it.
– Procreation gives it weight.
– Pleasure gives it joy.
– Bonding gives it depth.
– Covenant gives it safety.
When we reduce sex to one purpose, we distort it. When we understand all four, we steward it wisely.
Personal Reflection
Consider honestly:
- Have you reduced sex to only one of these purposes?
- Do you view pleasure as holy within marriage, or slightly suspect?
- Have you experienced emotional bonding through intimacy?
- If single, how does understanding bonding chemistry change how you think about casual encounters?
Sit with these questions slowly.
Sex was never meant to be trivial. It was never meant to be worshipped either.
It was designed to be sacred.
In the next episode, we will explore sex before marriage and ask honestly: what is the big deal, and why does covenant matter so much?
Until then, remember:
Sex is not just physical. It is spiritual glue.
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