Quote from A Course in Miracles Text Chapter 29 - THE AWAKENING.

T-29.VI.4. Change is the greatest gift God gave to all that you would make eternal, to ensure that only Heaven would not pass away. 2 You were not born to die. 3 You cannot change, because your function has been fixed by God. 4 All other goals are set in time and change that time might be preserved, excepting one. 5 Forgiveness does not aim at keeping time, but at its ending, when it has no use. 6 Its purpose ended, it is gone. 7 And where it once held seeming sway is now restored the function God established for His Son in full awareness. 8 Time can set no end to its fulfillment nor its changelessness. 9 There is no death because the living share the function their Creator gave to them. 10 Life's function cannot be to die. 11 It must be life's extension, that it be as one forever and forever, without end.