Paul’s letter to them is the New Testament epistle with the most Old Testament quotations

Paul’s Epistle to the Hebrews in the New Testament contains the most quotations from the Old Testament. This letter, which is directed to the Jewish Christian community, frequently references the Old Testament in order to establish Jesus as the Messiah in the context of Jewish traditions and prophecies. The Epistle to the Hebrews is traditionally attributed to Paul, although the authorship has been a topic of debate among scholars.