The practical consequences of homosexuality and prostitution (STIs and reduced vigor) are of much less concern to Jesus and Paul (and other Biblical figures) than the immediate problem of ignoring God&#x27;s design and intentions for sex.<p>Here&#x27;s a quick list of passages dealing with sexual immorality:<p><a href="http:&#x2F;&#x2F;www.openbible.info&#x2F;topics&#x2F;sexual_immorality" rel="nofollow">http:&#x2F;&#x2F;www.openbible.info&#x2F;topics&#x2F;sexual_immorality</a><p>Notice the theme where the immoral person does not get to inherit the kingdom of God.  That&#x27;s a way-out-in-the-future concept, not any kind of concern for the physical body of the immoral person.<p>Which isn&#x27;t to say there aren&#x27;t practical benefits to Biblical sexuality.  Certainly your chance of getting an STI is dramatically reduced (eliminated?) by remaining faithful to your spouse in marriage.  Abstinence for the unmarried has the same obvious benefits.  Heterosexuality is clearly the easiest way to procreate, and the inherent differences between men and women gives children a broader experience of physical, mental, emotional interaction with the world (seeing how mom and dad handle the same situation in gender-unique ways, for instance).<p>But again, all of that is the secondary concern.  The primary concern of all sin is the immediate effect it has on the spiritual condition of a man.  The preeminent theme throughout the Old Testament and New is that God is Holy.  He takes his holiness seriously.  Man has sinned.  God judges all sins.  There is one way back to God, and that&#x27;s by taking advantage of the path He made back to Himself, via his son, Jesus.