47. οἱ δὲ πατέρες ὑμῶν ἀπέκτειναν αὐτούς. This is holy sarcasm. They boasted that they would not have done as their fathers had done to the Prophets (Mat 23:30), yet they rejected John, the greatest of the Prophets, and crucified the Just One, Act 7:51-52. Thus they proved their moral as well as their literal affiliation to the murderers of the prophets.