Sacred texts, a set composed after Bible (6)

I believe the answer is:

avesta

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'sacred texts' is the definition.
'avesta' can be an answer for 'texts' (I have seen 'Religious texts' mean 'avesta' so perhaps 'texts' could also mean 'avesta'). I am not certain of the 'sacred' bit.

'a set composed after bible' is the wordplay.
'composed' indicates anagramming the letters.
'after' says to put letters next to each other.
'bible' becomes 'AV' (Authorised Version of the Bible).
'a'+'set'='aset'
'aset' with letters rearranged gives 'esta'.
'esta' after 'av' is 'AVESTA'.

Can you help me to learn more?

(Other definitions for avesta that I've seen before include "Zoroastrian sacred writings" , "Religious texts" , "sacred text" , "collection of holy writings" , "Parsee scriptures" .)

I've seen this clue in The Independent.

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