epistolic
/ɛpɪˈstɒlɪk/Definitions
1. adjective
relating to or resembling letters or epistles
“The epistolic form of ancient texts has been a subject of study among historians.”
2. noun
a letter or epistle, especially an epistle of St. Paul
“The epistolic writings of St. Paul have been influential in shaping Christian doctrine.”
3. adjective
of or relating to the epistles of St. Paul, especially in relation to their theology
“The epistolic theology of St. Paul emphasizes the importance of faith in salvation.”