Judging The Morality Of God

I recently encountered a question on Quora where someone wanted me to defend various aspects of Leviticus from a moral perspective. Of course, this is not the question which I set out to answer, it was originally a question about God's existence and quickly transitioned to a debate about morality. In my experience thus far, this seems to be the usual. Conversations that start out as a debate about God's existence move away from proving God and into a position where we are expected to defend God. Fortunately for me, God does not need me to defend Him. The situation, however, caused me to step back and evaluate the real question at hand. Can we find objective reasons to disagree with God's moral actions or decisions?