Be friends before dating
Let's assume for the sake of argument that your intimate friendship is one of those rare jewels that is devoid of the potential for hurt or confusion. In the past, when both sexual immorality and intimate male-female friendships were much less accepted and less common in society, men and women moved more deliberately toward marriage earlier in life.By offering a taste of the companionship and interactions that make marriage so satisfying, with none of the accompanying commitments or responsibilities entailed in marriage, intimate friendships discourage the pursuit of the grown-up, God-intended outlet for marital desires — marriage.Yes, I know, the other person is an adult who is free and responsible to walk away if he or she is so unsatisfied, but like it or not, it tends not to work that way. Especially if it's the woman in this position (as seems to be the case more often than not) she will likely feel that if she pushes for something more than friendship, she may lose the interaction and companionship she currently has.Still, given her desire for a husband — and perhaps to have man as her husband — the status quo of "just really good friends but nothing more for some odd reason" will leave her unsatisfied, frustrated and confused.As you probably know, I believe Scripture to teach that engaging in the types of emotional intimacy and companionship involved in close male-female friendships — outside of marriage and for their own sake — is wrong (see else I've ever written for Boundless).But even if you don't accept that premise, such intimacy is still inadvisable in the sense that it delays and discourages marriage, which Scripture unambiguously calls good and right.Romans 13:8-14 calls us to love others, to work for their souls' good rather than looking to please ourselves.More specifically, verse 10 reminds us that "[l]ove does no harm to its neighbor." Romans 14:1-15:7 offers a discourse on favoring weaker brothers and sisters above ourselves, valuing and encouraging that which is good in the souls of others.
In fact, the failure of many Christian men to pursue marriage well into their 20s and 30s may be one of the most disturbing results of this trend, but that's another topic for another day.
They tend to involve the sharing of many aspects of each other's daily lives and routines.
In other words, they tend to involve much of the type of intimacy and companionship involved in — and meant for — marriage.
First Thessalonians 4:1-8 admonishes us not to wrong or "defraud" our brother or sister by implying a marital level of commitment (through sexual involvement) when it does not exist.
As I've discussed before, a broad (but sound) implication of this passage is that "defrauding" could include inappropriate emotional — as well as physical — intimacy.