Theophylact of Ohrid — as excerpted in the Catena Aurea on Luke 13:31-35

“But because they said unto Him, Depart from hence, for Herod seeks to kill thee, speaking in Galilee where Herod reigned, He shews that not in Galilee, but in Jerusalem it had been fore-ordained that He should suffer. Hence it follows, For it can not be that a prophet perish out of Jerusalem. When thou hearest, It can not be (or it is not fitting) that a prophet should perish out of Jerusalem, think not that any violent constraint was imposed upon the Jews, but He says this seasonably with reference to their eager desire after blood; just as if any one seeing a most savage robber, should say, the road on which this robber lurks can not be without bloodshed to travellers. So also no where else but in the abode of robbers must the Lord of the prophets perish. For accustomed to the blood of His prophets, they will also kill the Lord; as it follows, O Jerusalem, Jerusalem, which killest the prophets.”