XX (God-given ), the name of an insurgent mentioned in Gamaliels speech before the Jewish council, ( Acts 6:35-39 ) at the time of the arraignment of the apostles. He appeared, according to Lukes account, at the head of about four hundred men. He was probably one of the insurrectionary chiefs or fanatics by whom the land was overrun in the last year of Herods reign. Josephus speaks of a Theudas who played a similar part in the time of Claudius, about A.D. 44; but the Theudas mentioned by St. Luke must be a different person from the one spoken of by Josephus.