Theophylact of Ohrid

Herod was glad about this not, however, because he hoped to gain any benefit for his soul from seeing Jesus, but since he had heard about Him that He was a wise man and a wonder-worker, he had a foolish desire, suffering himself from a love of novelties, to see this strange Man and listen to what He had to say. Do not many of us even now suffer from this same disease? …

Commentary on Luke ↗

Gregory the Dialogist

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.

Catena Aurea by Aquinas ↗

Bede

But Herod, seeing Jesus, was very glad. For he had wanted to see him for a long time, because he had heard many things about him, and he hoped to see some sign done by him. But he questioned him with many words, and he answered him nothing. He was silent and did nothing, because neither did his cruelty deserve to see divine things, and the Lord avoided boasting. And perhaps all the impious are signified in Herod, who, if they do not believe in the law and the prophets, cannot see the wonderful works of Christ in the Gospel.

On the Gospel of Luke ↗

Bonaventure

Second, as regards the curiosity of Herod in his questioning, he adds: But Herod, seeing Jesus, was exceedingly glad, not on account of the sight of faith, as Abraham, of whom it is said in John eight: "Abraham rejoiced to see my day: he saw it and was glad." — For he had been desirous for a long time to see him, not through the affection of charity, as Job twenty-three: "Who will grant me that I may find him and come even to his throne?" For to such persons it is said above in chapter ten: "Blessed are the eyes that see what you …

Commentary on Luke, Chapter 23 ↗