What are epistiles?

Answer 1

From The Bible, they are basically letters that make up much of the New Testament. All of the Apostle Paul's books are considered epistles, from Romans to Hebrews. James, 1 & 2 Peter, 1,2 & 3 John, and Jude are also considered epistles.

Answer 2

There seems to be a typo in your question. If you are asking about "epistles," they are letters or literary compositions written in a formal or elegant style. Epistles are often found in ancient texts and religious scriptures.