Not forgiving, like an incomplete Bible (8)
I believe the answer is:
ruthless
'forgiving like an incomplete bible' is the definition.
I can't judge whether this defines the answer.
'not' is the wordplay.
I cannot quite see how this works, but
'not' could be 'less' (I've seen this in other clues) and 'less' is located in the answer.
The remaining letters 'ruth' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for ruthless that I've seen before include "Callous" , "hard" , "Brutal" , "Without mercy or pity" , "Without pity or compassion" .)