If you've got a gay or lesbian friend and you're holding a traditional faith, you've probably reached for “love the sinner, hate the sin” at some point, either to explain your own posture to someone else or to try to explain it to your friend directly. Here's the uncomfortable truth: that phrase, however well-intentioned, usually does more harm than good, and it's worth understanding why before you reach for it again.
Where the phrase actually comes from
Most people assume “love the sinner, hate the sin” is a direct quotation from Scripture. It isn't. The sentiment traces back to Augustine, who wrote something close to it in Latin in the fifth century, and it's been repeated and reshaped by various Christian writers since. That doesn't automatically make it wrong, old ideas aren't bad just for being old, but it does mean it's not a biblical mandate in the way it's often presented. It's a theological formula someone came up with to describe how God relates to sin, later borrowed as a personal relational strategy for how Christians should treat gay and lesbian people specifically. That borrowing is where it starts to break down.
Why it falls apart in practice
The phrase assumes a clean separation between a person and a single, contained behavior; love the person, oppose the one bad thing they do. That works reasonably well for something like lying or stealing, a discrete act someone commits and then stops committing. It works much less well applied to orientation, because orientation isn't a discrete act. It's an experience woven into how a person perceives the world, forms relationships, and understands their own desires, not something switched on during a specific moment of sin and switched off the rest of the time.
So when a straight Christian friend says “love the sinner, hate the sin” to or about a gay friend, what often gets communicated is something closer to “I accept you except for the part of you that's attracted to people the way you are,” which doesn't feel like a careful theological distinction. It feels like being told that a significant, constant part of who you are is the one part that isn't welcome. The phrase was built to separate a person from an action. In practice, when applied to orientation, it ends up separating a person from themselves.
There's a second problem too. The phrase puts the burden of figuring out where love ends and correction begins entirely on the person doing the loving, and in practice that boundary tends to drift toward judgment faster than grace. “Hate the sin” is a much louder, easier instinct to act on than “love the sinner” is, especially toward someone whose life doesn't look like yours. Plenty of people who meant well with this phrase ended up making their gay friend feel like a project to manage rather than a person to know.
What to do instead
Drop the formula and do the work it was trying to shortcut. Loving a gay friend well doesn't require a clever phrase that resolves the tension between conviction and relationship in advance. It requires the slower, harder work real friendship always requires: knowing your friend as a whole person, staying curious about their lived experience instead of assuming you already understand it, and letting the relationship be the main thing rather than a theological position you're both managing around.
In practice, that looks like asking real questions instead of offering a prepared response. It looks like being present for the parts of your friend's life that have nothing to do with sexuality at all, since that's most of their life, and treating those things as what the friendship is actually about. It looks like not treating every conversation as an opportunity to clarify where you stand theologically, since your friend likely already knows, and constantly restating it mostly just signals that you're keeping score.
If your friend asks directly where you land theologically, answer honestly rather than dodging. Clarity, offered once and without repeating it at every opportunity, is a form of respect. What erodes a friendship isn't a friend holding a traditional conviction. It's a friend who can't stop making sure you know it.
What this doesn't ask of you
None of this requires you to change your convictions about sexual ethics in order to be a good friend. You can hold a traditional view and still get this right. What it asks is that you stop leaning on a tidy phrase to do relational work that only a real relationship can do. “Love the sinner, hate the sin” was never going to carry that weight, and your friendship doesn't need it to.