... reason and experience both forbid us expect that national morality can prevail in exclusion of religious principle. (religion.blogs.cnn.com)
A minister or priest may discuss particular issues with the couple, including their personal statements of faith as well as the basic religious principles that apply to marriage. (wisegeek.com)
I don't know if there's a god or not, but I think religious principles are quite valid. (religion.blogs.cnn.com)