The gospel of Luke and the Acts of the Apostles make up a two-volume work which scholars call Luke-Acts. The author is not named in either volume. According to a Church tradition, first attested by Irenaeus (c. 130 - c. 202 AD), he was the Luke named as a companion of Paul in three of the Pauline letters, but "a critical consensus emphasizes the countless contradictions between the account in Acts and the authentic Pauline letters.