No, as I've pointed out, Mary and Joseph (Matthew 1:18-19), Deuteronomy 22:28-29, and the woman at the well (John 4:16-18) all dispel the belief that simply having sex makes you married to that person.
Jesus was talking to a woman not even in the covenant, so the fact he didn’t go into explanation about two becoming one constituting a marriage from the covenant, doesn’t nullify the fact that Paul said you become one in marriage with a prostitute, (and quotes the Genesis 2:24 verse about the fact that marriage as God created it is a man and a woman leave mother and father, and cleave together and become as one, is in fact incontrovertible proof that sexual intercourse makes a marriage in Gods eyes.
Yes. He says to GET MARRIED if you have sex - Deuteronomy 22:28-29.
But we say, having sex IS getting married.
And I think it's obvious we say that because we want to avoid making a commitment. For deep inside of us we know that if you don't 'get married' it leaves the door open for us to leave the relationship. 'Sex is getting married' is how we justify not making an actual marital commitment to another person.
i say it because scripture says it.
I just found this from the well known Focus on the Family:
Question: When a couple has consensual sex, doesn’t that mean they’re essentially married in God’s eyes?
If everyone believed that sex implies marriage, women would be more likely to guard their virginity, and men would be far more careful if they knew that sexual intimacy demanded commitment. Shouldn’t that be the message we communicate when it comes to premarital sex?
ANSWER:
Technically speaking, you’re right: In God’s eyes, sexual union
is an integral part of marriage — even more than church ceremonies or legal documents. But consensual sex isn’t the same thing as the commitment of marriage.
Applying theology to contemporary culture
Scripture tells us that marriage is fundamentally a matter of a man and a woman becoming one flesh (
Genesis 2:24). And sexual intercourse is central to that process. Modern culture might treat sex as a toy, but in reality it’s a powerful thing. It creates a bond between a husband and wife that isn’t easily broken.
That truth is why the apostle Paul warns, “Do you not know that he who is joined to a prostitute becomes one body with her? For, as it is written, ‘The two will become one flesh.’” (
1 Corinthians 6:16).
But biblical theology needs to be put into practical application. And it’s not so much a matter of helping people
understand that sexual activity equals marriage in the eyes of God — the real question is how to get them to
care.