The document provides an introduction to the Epistle to the Hebrews. It discusses that the book is unique in its structure, moving from an essay to a sermon to a letter. It contains challenging but insightful contents. It warns of the danger of apostasy and need for steadfast faith. The background discusses that the author is unknown but likely not Paul, and that it was written to Jewish Christians prior to 70 AD. The purpose was to prevent abandoning faith in Christ by showing His superiority over the Old Covenant. It provides exhortations from this superiority.