No culture in history has ever embraced moral relativism and survived. Our own culture, therefore, will either (1) be the first, and disprove history's clearest lesson, or (2) persist in its relativism and die, or (3) repent of its relativism and live. There is no other option.
The more we realize we are loved, the more ashamed we are not to love back. The more we sin as a violation of love, not just of law, the more powerful a motive we will have to overcome it. For sin is attractive to us (otherwise we would never be attracted to it) and can be cast out only by something more attractive.
A man walking through a wall is a miracle. A man both walking and not walking through a wall at the same time and in the same respect is a contradiction. God can perform miracles but not contradictions - not because his power is limited, but because contradictions are meaningless.