I like the way all OTHER sins are being ignored in this thread!
Good point! Talking about sin is a complex subject. God hates all types of sin and without repenting and humbling ourselves to accept the shed blood of our Lord, the least little sin is spiritual death. Christians are called to be the light of the world. We dishonor our Father and His Son when we fail to represent Him through sanctified lives.
Christians can certainly sin. But they cannot live with sin.