epistler

noun2

1. •
   A writer of an epistle.

   • their incorporation would have, probably, quite served to justify the Epistler both in his own eyes and in those of his public. — 1875
2. •
   The ecclesiastic who reads the epistle at the communion service.

   • These be my gospellers, These be my pystyllers, These be my querysters To helpe me to synge, My hawkes to mattens rynge! — 1503