Luke 4:16

As his custom was] When living at Nazareth, Jesus had been accustomed to read the lessons as an ordinary member of the congregation. Even boys under age were allowed to do this. Stood up for to read] The Law and the Prophets, but not the Hagiographa, were read standing. The rabbis said: 'They do not read the law otherwise than standing up. Nay, it is unlawful for him that readeth to lean upon anything.' 'A man may read out of the book of Esther either standing or sitting, but not so out of the Law.' Jesus having stood to read, sat to expound. As He read in Hebrew, the Methurgeman, or Interpreter, translated into the vernacular Aramaic. See on Matthew 2:6