I'm not sure exactly what I mean, myself, saying that I'm not a Christian. I don't think that I have the same beliefs about God and Jesus as any Christians, conservative or liberal or in between, Trinitarian or not, but I'm not sure that fully explains why I don't want to call myself a Christian. I thought that accepting Muhammad as an authentic prophet of God would disqualify me from being a Christian, but apparently not. I might qualify as a Christian culturally or in some of my ways of thinking, but that is not reason enough for me to call myself a Christian.