C. If I am to accept this, I must do so on your authority alone, since you cannot prove it   
from the Qur'an. But I notice that now you admit that part at least of earlier revelations have not   
been abrogated by the Qur'an. Reason teaches us that what the Bible says of (1) the Nature and   
Attributes of God, (2) Historical facts, (3) the Moral Law, (4) Prophecies, and (5) the Plan of   
Salvation, cannot possibly be abrogated.
  
77. M. Some of these may be. Why should not the way of salvation be altered from time to   
time? In Moses' time it was necessary to believe in him, in Jesus' time in Him, in Muhammad's time   
in him. So it is necessary to obey successive kings, each in his own time.
  
  
C. This is contrary to Reason, for it represents God as fickle and changeable. He is the   
one King in religious matters, so the analogy does not exist. Moses did not claim to be the   
Saviour, nor did any other prophet. They all bore witness to Christ, in whom alone can salvation be   
found (John xvii. 2, 3; Acts iv. 12). The Messianic prophecies are the essence of the Old   
Testament, and that of the New is contained in John iii. 16. Moreover, Christ declares "Heaven   
and earth shall pass away, but My words shall not pass away" (Matt. xxiv. 35). He states that   
at His second coming He is to be the judge of living and dead (Matt. xxv. 31-46; cf. Acts iv. 12).   
Reason shows us that these things can never be annulled. Your