Edmund wrote:"Gospel: Annunciation" is pointless. Gospel is from Old English gōdspel (gōd (good) + spel (news)), a calque of the Greek euangélion (good news). There's no reason for it to require a name different to the one in RL.
"Book of Bliss"? Why? Quran translates to "the recitation".
Katub I believe translates to "written", so...
Allah translates to God. There's no point in renaming Allah Akim.
"There's no reason for X to require a name different to the one in RL" really applies to all of these.
Considering the amount of lore and usage of these terms it shouldn’t be changed.