And Jesus himself was about thirty years of age, being (as was supposed) the son of Joseph, who was the son of Heli,
All Commentaries on Luke 3:23 Go To Luke 3
Ambrose of Milan
AD 397
Therefore Luke also thought that his origin should be traced back to God. Because God is the true Father of Christ, either the Father according to the true generation or the Author of the mystical gift—according to the regeneration of baptism. Furthermore, he did not start by describing his generation but first set forth his baptism. He desired to show him as God, the Author of all, weaving everything together through baptism. He also stated that Christ derived from God in the order of succession, in order to prove him the Son of God according to nature, according to grace and according to the flesh. Then what clearer evidence is there of divine generation than that before speaking of Jesus’ generation, Luke has the Father himself saying, “This is my beloved Son, in whom I am well pleased”? Exposition of the Gospel of Luke