Annas and Caiaphas being the high priests. — Strictly speaking, there could be only one high priest, and the office was filled at this time by Caiaphas. Annas had been appointed by the Roman Procurator Quirinus, A.D. 7. In A.D. 14, he had to give way to Ishmael, who was appointed by Gratus successor to Quirinus; then followed Eleazar and Simon, and then, in A.D. 25, Joseph Caiaphas, who had married the daughter of Annas (John 18:13). It was natural that this relationship should involve the restoration, as far as possible, of his old dignity, and either as the Nasi or President of the Sanhedrin, or as the Sagan or deputy of the high priest, he may have acted as a coadjutor, as in our Lord’s trial, and come to be spoken of as still high priest. Five of his sons, it may be noted, filled the Pontifical office in succession. In Acts 4:6, he is named as distinctly the high priest. In St. John, as above, he shares the judicial authority with Caiaphas. St. Matthew and St. Mark do not name him.
Unto John the son of Zacharias. — This description of the Baptist is peculiar to St. Luke.
(2) As we go further back the names are all different till we come to Zerubbabel; and the list in St. Luke from Zerubbabel to Joseph contains twenty names, inclusive, while those in St. Matthew are only thirteen.
(2) The difference in the number of names presents no real difficulty. We have seen (Note on Matthew 1:9) that St. Matthew omits three names in the list of kings in order to adapt it to the memoria technica of fourteen names in each group, and what he did in one case he may well have done in another for the same reason.