I beg to disagree, Gracey. When the moral sense of the country evolve to the point of viewing slavery as immoral, it has become a political issue. Mahatma Ghandi was a moral force and became a politcial headache for the empire. I could give plenty of other examples.
Besides, moved solely by moral considerations, one could advocate forming or supporting a particular politcial party.
Thus, morality belongs to the political arena and not exclusively in the church.
Morality is the measure of the law, and we will each measure it and judge it according to our own moral beliefs. The problem is some people use morality and law interchangeably and end up trying to use the law as the measure of peoples morality.