Our society still believes strongly in the sixth commandment, "Thou shalt not murder!" We're not nearly as serious about the seventh commandment, "Thou shalt not commit adultery." When it comes to sex, our culture preaches the message of free love and sexual expression, but when you go to give blood, there's not one question about whether you have had monogamous, heterosexual intercourse. There are questions about sexual acts that are supposed to be so progressive and liberating. Ask yourself why these behaviors disqualify someone from giving blood, then go back and read not only Deuteronomy 5:18 but chapters like Leviticus 18 and think about why God warned his people against acting like Canaanites when it came to sex.