If you were to say that a Christian can continue to live in sin over and over, you'd be crazy! It goes against God's plan for us as Christians. A writer three centuries ago put it like this: "What a strange kind of salvation do they desire that care not for holiness... They would be saved by Christ and yet be out of Christ in a fleshly state... They would have their sins forgiven, not that they may walk with God in love, in time to come, both that they may practice their enmity against Him without any fear of punishment."
The Chase is a book that I bought for my sister for Christmas. When she finished it, she graciously allowed me to borrow it. It has been a great book so far, and has been a really easy read. It is based on another book by Jerry Bridges called The Pursuit of Holiness.
This quote came from chapter 3, which is titled, Holiness Isn't an Option. This is such an essential point in any generation, because there are always those who will try to support the teaching that you can be saved by God, yet never live it. In fact, the author of the quote that is within this quote is Walter Marshall, who lived in 1692. You could even go even further back in history and find others who have battled against this concept.
Many want to believe it too. They want to get that ticket to heaven, but they do not want to follow the savior. Jesus himself said, "...if you are not willing to take up your cross and follow me, you cannot be my disciple."
Anyway, it is a great book, check it out.