Are Christians supposed to be different? How? From what?

A 2001 Barna poll in the United States found that amongst 'born-again' Christians, 33% of marriages ended in divorce. Non 'born-again' people - 34%. Not much difference.

Since 1993, 2.4 million teens have signed a pledge through the 'True Love Waits' campaign promising to wait until marriage for sexual intercourse. A 2004 study tracked 12,000 of those teens and found that 88% of them didn't wait. It also found that the rate of STD's in the group that pledged was about the same as the general population.

We could talk about giving, racism and spousal abuse (higher in marriages that emphasize traditional roles). Research shows that Christians are not living very differently from those who do not claim to be Christian.

The Christian faith claims that in Christ we are a new creation, the old has passed the new has come. We claim that the Holy Spirit of God lives in us and gives us everything we need for life and godliness. We are to be holy because God is holy.

So, what's the difference?