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
It benefits no one to change what is written: “Who was thought to be the son of Joseph.” For it was right that he was “thought” so, because he was not the Joseph’s son by nature but was thought to be his Son, because he was born of Mary, who was engaged to Joseph, her husband. So you have: “Is not this Joseph the carpenter’s son?” Exposition of the Gospel of Luke