The Letter to the Hebrews is an interesting entry in our New Testament Canon.
We do not know who authored the letter. Many attribute it to Paul, given his favored literary genre. Others argue that Hebrews was authored by someone else. (The debate generally rests on how well you think the theology of Hebrews fits in with the Pauline letters.)
To me, the question of authorship is overshadowed by the letter’s intent. As the disciples were sharing the Easter story, we are drawn to the “success” stories, the early and excited crowds who have decided to follow Jesus. Yet, we don’t often consider the folks who were a bit trepidatious about this invitation. “How could this Jesus of Nazareth be God’s Christ is he died such an accursed death?” Was a familiar point of contention.
The Letter to the Hebrews is written to precisely those members of the Jewish faith who still had their doubts—and as such, it gives the Church a gift in helping us see the Jewish context of Jesus’ ministry.