TRADITION VS SCHOLARSHIP
The answer
A physician — Colossians 4:14 calls him "Luke, the beloved physician." Tradition identifies that companion of Paul as the author of the Gospel and Acts, though the Gospel itself names no author.
Why it’s interesting
The link is old and widely repeated, but it rests on tradition rather than a signature in the text. Whether that Luke actually wrote the Gospel is something scholars still weigh.
Genuinely debated
You can know the Bible.
Not just the stories, but the history, authorship, and scholarship behind it.