text: This phrase and that on the communion of saints are articles found in the Apostles ' Creed , but not in the Old Roman Symbol nor in the Nicene Creed .
simplified: Many hypotheses exist concerning the date and nature of the origin of the Apostles ' Creed . Many suppose it comes from `` the Old Roman Symbol '' of the 1st or 2nd century and was influenced later by the Nicene Creed ( 325\/381 ) .