Now Jesus Himself began His ministry at about thirty years of age, being (as was supposed) the son of Joseph, the son of Heli,
Luke 3:23
Surrounding context
3:22 And the Holy Spirit descended in bodily form like a dove upon Him, and a voice came from heaven which said, "You are My beloved Son; in You I am well pleased."
3:23 Now Jesus Himself began His ministry at about thirty years of age, being (as was supposed) the son of Joseph, the son of Heli,
3:24 the son of Matthat, the son of Levi, the son of Melchi, the son of Janna, the son of Joseph,