Sacred carols used to get special effect (8)
G*U*E*E*
The closest I have got to an answer is GAUDETE.
The 'G' comes from 'SCROOGE'
Perhaps mean at Christmas there's no goose on credit.
The 'U' comes from 'ESAU'
Twinned in the bible around East USA.
The 1st 'E' comes from 'HOLYWEEK'
Surprisingly, the whole key to this sacred period.
The 2nd 'E' comes from ' 'BETHLEHEM'
Where He was born to be at the helm of Christianity.