'Epistle' in the Bible

They therefore, being let go, came to Antioch, and having gathered the multitude delivered to them the epistle.

I Tertius, who have written this epistle, salute you in the Lord.

I have written to you in the epistle not to mix with fornicators;

being manifested to be Christ's epistle ministered by us, written, not with ink, but the Spirit of the living God; not on stone tables, but on fleshy tables of the heart.