A study of many Bible passages shows that while the angels and God are at times distinguished from each other, they are with equal frequency, and in the same passages, merged into each other. How is this to be explained?
Life is animate being, and once it begins it inexorably leads to death. At least this is the case after the fall of Adam in the Garden of Eden. (Gen. 2:17; 3:1-6) This will not be the case after Jesus' Second Coming. Death is a cessation of life, an irreversible state that is characterized by the cessation of all those processes that sustain life.