American Tract Society Bible Dictionary
Friend of God, an honorable person to whom the evangelist Luke addressed his gospel, and the Acts of the Apostles, Luke 1:3; Acts 1:1 . We can only say of him, in general, that most probably he was a man of some note, who lived out of Palestine, and had abjured paganism in order to embrace Christianity.
These files are public domain and are a derivative of the topics are from American Tract Society Bible Dictionary published in 1859.
Rand, W. W. Entry for 'Theophilus'. American Tract Society Bible Dictionary. https://www.studylight.org/dictionaries/eng/ats/t/theophilus.html. 1859.