A person who claims to follow any specific deity is then responsible to carry out the commands of that deity, lest they chance pissing their deity off.
FYI, that's a bad idea.
Different deities have revealed their precise wills in different ways. The more 'involved' the deity is in the everyday life of humans, the more specific the commands and revelations will be. Wiccans have their Rede, Hindus have a collection of writings that I can't spell (sorry), Satanists have their own Book, Mormons have a few books, Islam has the Quran, Jews have the Torah, Christians have the Bible and the Church.
I refuse to believe that Christians are the only wishy-washy people on the face of the Earth. Waffling is a human trait, not a 'Christian' one.
When people waffle on the teachings of their chosen religion, they do so because the original teachings are inconvenient for them. The more studious of the waffle-makers will try to whitewash their actions and their theology, but they aren't really kidding anybody.
You either believe in the revelation of your deity....or you don't. If you DON'T LIKE some aspect of your faith's teachings, then do some research. Do you really understand it? What is its purpose? Is it something your God really wants you to do (or avoid doing)? Where does the commandment sit in the hierarchy of commandments? This is important if you are addressing a seeming conflict, either internal or external.
Ultimately, what does GOD really want from YOU?
If you don't like what you have found (after careful inquiry) you have 2 choices (IMHO)
1. Suck it up and deal and submit.
2. Leave the faith.
Remember, you don't have to explain yourself to the rest of us. You have to explain your actions to God. Not just *any* God...YOUR God.
Or are YOU really God? There's the question.