I suppose you're asking why we should not be engaging in sex prior to marriage, even if it's "safe" (i.e. prevents sexually-transmitted diseases & pregnancy). Let me answer this by saying this:
I believe "safe sex" is simply a way for unmarried individuals to enjoy the benefits and pleasures of sex without the consequences. The problem with this view is that sex is not simply a physical act. It has deep spiritual and emotionally consequences. It is, as some have said, the "mingling of two souls" and therefore requires the greatest commitment (namely, marriage) in which to be truly enjoyed. The truth is sex is costly, requires great sacrifice and is for the creation of life. It is not to be practiced casually, even though it may be considered "safe."
For more information, read this sermon by Matt Chandler HERE.
Additionally, listen to our sermon, "The Dating Game" via our podcast at splat.rhccc.ca
Lastly, I just want to say this: If you're struggling in this area of your life, please know that Jesus died for you. You can be restored and healed through Him. You are the rose he wants.
[Answered by Pastor HM]