Hebrews — The NT's most sustained Old-Testament argument — an extended demonstration that Jesus is ‘better than’ every institution Judaism knew. Priesthood, covenant, tabernacle, sacrifice: all fulfilled in one great high priest.

Author

Unknown — the book itself does not name its author. Traditional attribution is Pauline (Clement of Alexandria, Origen, much of the Eastern church); Luther proposed Apollos; Tertullian preferred Barnabas; Harnack proposed Priscilla. Site does not adjudicate

Date

Mid-to-late 1st century AD, almost certainly before AD 70 (the book argues against the ongoing Temple liturgy as if the Temple still stands)