What the Bible Says About Love In Relationships
The short answer
When people search for bible verses about love in relationships, they often expect poetry—and the Bible has plenty. But one of scripture's sharpest definitions of love comes from an unexpected place: a first-century argument about food. In 1 Corinthians 8, Paul writes that "knowledge puffs up, but love builds up" (1 Corinthians 8:1). Some Corinthian Christians knew, correctly, that idols were nothing, so eating meat sacrificed to them was harmless. Paul doesn't dispute the knowledge. He disputes what they were doing with it.
Being right, Paul says, is not the same as being loving. The believers with 'knowledge' had every technical right to eat that meat. But if exercising that right damaged a fellow believer whose conscience was fragile—someone who might be drawn back into an old way of life—then the right had to yield. Love, in Paul's hands, is not primarily a feeling. It is a willingness to set aside something you're entitled to for the sake of another person's wellbeing.
This reframes what love in a relationship actually looks like. The question shifts from "What am I allowed to do?" to "What does my freedom cost the person next to me?" A marriage, a friendship, a family bond—each is built up or worn down by these small acts of yielding or insisting.
There is one more step worth taking. It isn't only people we treat well or badly; the relationship itself is something we can tend or neglect. A bond between two people can be nurtured, sacrificed for, or harmed. That means love shows up not only in how we speak to someone in the moment, but in the long, quiet choices—what we protect, what we prioritize, what we're willing to give up—that determine whether the relationship itself grows stronger or slowly erodes.
What scholars say
N. T. Wright unpacks how Paul asks the Corinthians to hold their 'rights' up to the light of love before exercising them, and Michael Duffy adds a practical dimension: it isn't only people we choose to treat well or badly—relationships themselves can be loved, nurtured, or harmed by our choices.
“What he insisted on earlier in the chapter was that ‘knowledge’ puffs you up, but love builds you up; and it’s love that he’s appealing to now, as part of the foundation of his argument. You may, he says, have the ‘right’ to eat meat offered to idols. He may even be referring to the ‘right’ that Roman citizens in Corinth possessed to attend great imperial festivities. But you must be careful in case this ‘right’ of yours leads you to do things which will lure the ‘weak’ brother or sister back into the old life. The language of ‘rights’ needs to be held up to the light; and the light in which we can see clearly what it should and shouldn’t mean is the light of love.”
“Perhaps it is reasonable for two people who are strangers to one another to have sex. Maybe we should be open to having sex with our friends. Perhaps a long-term, even if not permanent, relationship seems reasonable and sufficient for us, or we might be among those who are waiting to be married before having sex. Before we take up these issues, let’s address one additional issue in this chapter. It is not only other people that we choose to treat in one way or another; relationships themselves may also be loved, sacrificed for, harmed or not harmed, nurtured or not nurtured. Along with our questions about how we will treat others are questions about how we will treat our relationships.”
What it means for you
Try asking a different question this week. Instead of "Am I in the right?" ask "Is this building the other person up?" You may be entitled to the last word in an argument, to your free evening, to spending your money as you please. Paul's point is that entitlement isn't the final court of appeal—love is. Pick one 'right' you tend to insist on with a spouse, friend, or family member, and consider what it would mean to hold it loosely. Then think of the relationship itself as something alive in your care: What would it look like to feed it today rather than simply not harm it?
In context
First Corinthians is Paul's letter to a young, divided church in Corinth, a cosmopolitan Roman city where meat sold in markets and served at civic events had often been offered to pagan gods. Chapter 8 opens a three-chapter discussion (chapters 8–10) on whether Christians could eat such food. Paul's answer weaves through his own example in chapter 9—where he describes rights he chose not to use—and lands in the famous love chapter, 1 Corinthians 13. Chapter 8 is where the principle is first laid down: knowledge inflates, but love builds.