Evidently Theophilus was a real person.11His name is Greek and means "friend of God."He appears to have been a fairly recent convert to Christianity from Greek paganism. Consequently it appears that Luke wrote for people such as Theophilus originally. Before his conversion, Theophilus may have been one of the Gentile God-fearers to which Luke referred several times in Acts. The God-fearers were Gentiles who had a certain respect for and who wanted to learn more about the God of the Jews. They came to the Jewish synagogues and listened to the Jewish Scriptures read there. Luke's orientation of his Gospel to the secular world and his references to Judaism also suggest that he wrote his Gospel with these people in mind. His use of the Septuagint version and his interest in the God-fearers suggest this too. The God-fearers had turned from Greek polytheism to Jewish monotheism, but many of them were not familiar with Palestinian geography and culture. Luke clarified these matters for his readers when necessary. The God-fearers were the Gentiles whom Paul found to be the most receptive soil for the gospel seed. Luke himself may have been one of this group, though there is no way to prove or to disprove that possibility.
"[Luke] writes to reassure the Christians of his day that their faith in Jesus is no aberration, but the authentic goal towards which God's ancient dealings with Israel were driving."12
By the first century most of the pagan Greeks had stopped believing in the gods and goddesses of their mythology and had abandoned fatalism. Many of them were following Eastern "mystery"religions that competed with Christianity for their allegiance. Both beliefs offered saviors, but the Savior of Christianity was a personal resurrected Lord whereas the savior of the mystery religions was impersonal and ideal. Luke evidently wrote to persuade these people to believe in Jesus and to give them a solid factual basis for their faith.
"That he wrote for an urban church community in the Hellenistic world is fairly certain."13