Short answer
– Evangelicals do not agree unanimously. Historically many evangelicals have attributed Hebrews to the Apostle Paul, but most evangelical New Testament scholars today regard Pauline authorship as unlikely and consider Apollos or an otherwise anonymous, well-educated Alexandrian Christian the most plausible candidate. In practice most evangelical commentaries treat the author as unknown while affirming the letter’s apostolic authority and Christ-centered theology.

Why this question matters to evangelicals
– Hebrews 1:3 is a high, explicitly Christological verse (“He is the radiance of the glory of God…exact imprint of his nature…sat down at the right hand of the Majesty on high”), so evangelicals care both about the teaching and about the letter’s apostolic or near-apostolic standing. Whether Paul wrote it or not does not change evangelical commitments to the inspiration and authority of Hebrews, but it does affect historical and literary interpretation.

Arguments for Pauline authorship (traditional evangelical case)
– Early church history: Some early church traditions associated Hebrews with Paul, and many Protestants historically accepted Pauline authorship. That gave Hebrews a strong place in the Pauline corpus in many churches.
– Doctrinal continuity: The theology in Hebrews (Christ’s priesthood, atonement, supremacy) fits squarely within apostolic teaching associated with Paul.
– Explanations for stylistic differences: Evangelicals who defend Paul argue differences in vocabulary and style can be explained by (a) a different audience and purpose (a Jewish-Christian sermon-like letter rather than a pastoral or missionary epistle), (b) Paul using a different amanuensis (secretary) or composing in a different rhetorical mode, and (c) the possibility that Paul’s Greek could vary by context.

Arguments against Pauline authorship (why many evangelicals doubt Paul)
– Greek style and vocabulary: Hebrews is written in very polished, Hellenistic Greek and uses vocabulary and rhetorical methods quite different from Paul’s undisputed letters.
– Lack of self-identification: Hebrews does not open with Paul’s normal name-and-greeting formula, nor does it assert apostolic claims in the way Paul’s letters regularly do.
– Early uncertainty: Even in the early church there was uncertainty (Origen famously said, “Who wrote the epistle, only God knows”), and some Eastern churches did not accept it as Pauline.
– Internal markers: Some theological emphases and argument-flow resemble Alexandrian exegetical methods and a different authorial milieu than Paul’s usual contexts.

Other evangelical-favored candidates
– Apollos: Frequently proposed by evangelicals as the best fit. Acts calls Apollos “eloquent” and “mighty in the Scriptures” and a learned Alexandrian preacher—characteristics that fit Hebrews’ polished Greek and scriptural exegesis.
– Barnabas, Luke, Clement of Rome, or an anonymous Alexandrian Christian: Each has been suggested at times; evangelicals differ in preference, but none of these proposals attracts unanimous support.

Typical evangelical scholarly posture today
– Many conservative evangelical commentaries (e.g., F. F. Bruce, William Lane, George Guthrie) conclude the author is unknown and treat Apollos as a strong candidate—or leave the question open—while still treating the book as canonical, authoritative, and inspired.
– A minority of evangelicals continue to defend Paul vigorously (e.g., some older Reformed scholars and popular teachers), but that view is less dominant in current critical scholarship, even within evangelicalism.

Practical implication for reading Hebrews 1:3
– Regardless of who wrote Hebrews, evangelicals emphasize the verse’s Christology: Jesus as the radiant glory of God, the exact representation of God’s being, sustainer of creation, and priest who accomplished atonement and now sits at God’s right hand. The letter’s authority and theological weight are not diminished by uncertainty about the human author.

Further reading (evangelical-friendly)
– F. F. Bruce, The Epistle to the Hebrews (NICNT) — careful, readable treatment that discusses authorship issues.
– William L. Lane, Hebrews (Word Biblical Commentary) — thorough evangelical commentary.
– George H. Guthrie, Hebrews (NAC) — a modern evangelical commentary that surveys authorship options.
– Shorter treatments: evangelical Bible commentaries or introductions to the New Testament that discuss Hebrews’ authorship and significance.

If you want, I can:
– Summarize the main textual and historical evidence for Apollos specifically,
– Give a short biography of Apollos and why he’s attractive as the author,
– Or walk through Hebrews 1:3 line-by-line from an evangelical exegetical perspective. Which would you prefer?