The Epistle to the Hebrews (or Letter to the Hebrews) is sometimes attributed to Paul the Apostle but its authorship is considered anonymous or unknown by most scholars.  Proposed authors include Luke the Evangelist, Apollos (a first-century Jewish Christian), and Priscilla (a first-century Christian missionary couple).  Known as one of the “masterpieces” of the Bible, it was believed to have been written around 67 AD.  The Epistle to the Hebrews exhorts Christians to persevere in the face of persecution.