Adam Clarke Bible Commentary

Pilate and Herod were made friends - I do not find any account of the cause of the enmity which subsisted between Herod and Pilate given by ancient authors; and the conjectures of the moderns on the subject should be considered as mere guesses. It is generally supposed that this enmity arose from what is related Luke 13, of the Galileans, whose blood Pilate hath mingled with that of their sacrifices. These were Herod's subjects, and Pilate seems to have fallen on them at the time they were offering sacrifices to God at the temple. Wicked men cannot love one another: this belongs to the disciples of Christ. But when Christ, his truth, or his followers are to be persecuted, for this purpose the wicked unite their counsels and their influence. The Moabites and Ammonites, who were enemies among themselves, united against poor Israel, and, as Rabbi Tanchum says, may be likened to two contending dogs, who, when the wolf comes, join together to destroy him; each knowing that, if he do not, the wolf will kill both in succession: whereas, by their union, they may now kill or baffle him. There is a proverb among the rabbins, that, when the cat and weasel marry together, misery becomes increased.