Well...actually, it is. God is perfect and cannot tolerate any sin. None. His laws/commandments don't allow for "small sins". You're either perfect or you're not. None of us are so we all fall short and are condemned. That's why Christ had to come. One perfect sacrifice for all. Now it's not about works but faith and faith alone. I think that's why it's so hard for some. They can't fathom that it's so simple. The yoke is so light. It's a gift. You do nothing to deserve it. You don't earn it. It's freely given. All you have to do is reach out and take it. It doesn't give you a license to do what you want. When you truly understand what God did for you, your heart changes. Your mind changes. Your perspective changes. You change. You no longer want those things that lead you to sin. Sure you'll stumble, but that doesn't change your decision. Once in His hand, nothing can separate you from it.