“And the same day Pilate and Herod were made friends together: for before they were at enmity between themselves.”
Luke 23:12 — Greek Interlinear
Church Fathers on Luke 23:12
Pilate having determined not to question our Lord concerning the above-mentioned accusation, is the rather glad now that an opportunity offers to escape from passing judgment upon Him. Hence it is said, When Pilate heard of Galilee, he asked whether the man were a Galilean. And lest he should be compelled to pass sentence against one whom he knew to be innocent, and delivered for envy sends Him to be heard by Herod, preferring that he who was the Tetrarch of our Lord’s…
Wherein he follows the Roman law, which provided that every man should be judged by the governor of his own jurisdiction.
Now Herod wished to make proof of Christ’s fame, desiring to witness His miracles; for it follows, And when Herod saw Jesus, he was glad, &c.