For YOUR religious belief, what is the most precious doent and what must YOU do to be Saved?

I am a Seventh-Day Adventist, or Adventist for short. The belief that sets us apart from most beliefs is that we go to church on Saturday and not Sunday [for biblical reasons that can be proved] We also believe in the Trinity [aka: the Father, Son, and Holy Spirit as one God [which some religions come to a disagreement with. But despite our differences, we love God and seek to please Him by obeying His commandments. :)