Bible Dictionary
Epistles
The Epistles are the apostolic letters that form a substantial part of the New Testament. They include Paul’s letters and the General Epistles, giving instruction in Christian doctrine, church life, godly conduct, and perseverance in faith.
Biblical Usage
The Epistles communicate Christian teaching through letters rather than through one formal treatise. They address churches, individuals, or Christians generally, and include pastoral instruction, doctrine, exhortation, and guidance for scattered Christian communities.