God has already revealed all, in fact it was never hidden and needs no revelation.So when come to say that they have God’s revelation, what they have is a current understanding within their capacity of God’s ‘word’. So what was ‘revealed’ to Moses,Buddha.Jesus, Muhammad and others was an understanding of God’s ‘law’ within the cultural and scientific parameters of the age. So you have the Christian church denouncing Galileo because the Bible’s level of astronomical knowledge was 2000 years behind the times. Muhammad could never have conceived of world where a woman could become head of state, so his understanding of revelation didn’t bring that forth. The myths circulated after Jesus’ passing seemed to be acceptable in 1st century thought,but today we know virgin birth that doesn’t result in parthenogenesis is rather impossible. Does God pass DNA? So today our out of touch religions strSPAM!!!le with evolution,birth control,woman’s rights,quantum physics etc,because at one time or another it was stated that their particular revelation was the final word. That doomed religious thought to be mired in the science of the times. God’s word is not written in stone, God’s word is written on the wind.