NET
23 So Jesus, when he began his ministry, was about thirty years old. He was the son (as was supposed) of Joseph, the son of Heli,
Darby
23 And Jesus himself was beginning to be about thirty years old; being as was supposed son of Joseph; of Eli,
KJV
23 And Jesus himself began to be about thirty years of age, being (as was supposed) the son of Joseph, which was [the son] of Heli,