The Epistle to the Hebrews is a book of the New Testament of the Christian Bible, traditionally attributed to the apostle Paul, although its authorship is uncertain. The letter is addressed to Jewish Christians who were facing persecution for their faith. The author encourages them to remain faithful to Christ, despite the challenges they face. The letter emphasizes the superiority of Christ to the Old Testament prophets and priests, and argues that he is the only mediator between God and humanity.