Most Christians believe that Jesus is "true God and true man" (or fully divine and fully human). Jesus is believed to have become fully human in all respects, including mortality, and to have suffered the pains and temptations of mortal man, yet without having sinned. From being true God he was capable of breaking the bonds of death and rising up again through what is known as the resurrection. The Chalcedonian Creed (which is not accepted by the Oriental Orthodox Churches) defined this as Christ having "two natures in one person", a doctrine known to theologians as hypostatic union (see Christology).