Jesus himself, when he began to teach, was about thirty years old, being the son (as was supposed) of Joseph, the son of Heli,
Between Abraham and David the two genealogies are the same (Matthew 1:2-6a; Luke 3:32-34a), but between David and Jesus they are different, as they follow two lines of descent that started with David and came together in Jesus (Matthew 1:6-16; Luke 3:23-31).