Theophylact of Ohrid

Since they found no fault in Him, they lead Him away to Caiaphas, perhaps hoping that he, being more cunning, would find something against Jesus worthy of death, either by catching Him in some answer, or by convicting Him of some deed.

Commentary on John ↗

Augustine of Hippo

This shows that Annas was the high priest, for this was before He was sent to Caiaphas. And Luke in the beginning of his Gospel says, that Annas and Caiaphas were both high priests. (Tr. cxiii) He was the one to whom they were taking Him from the first, as Matthew says; he being the high priest of this year. …

Catena Aurea by Aquinas ↗

Bede

Sent Him bound, not that He was bound now for the first time, for they bound Him when they took Him. They sent Him bound as they had brought Him. Or perhaps He may have been loosed from His bonds for that hour, in order to be examined, after which He was bound again, and sent to Caiaphas.

Catena Aurea by Aquinas ↗

Thomas Aquinas

2322 Now there is mention that he was sent from one high priest to the other. First, it is mentioned that Jesus was sent to the other high priest; secondly, the narration of Peter's denial is completed (v 25). 2323 He says, Annas then sent him bound to Caiaphas the high priest, to whom he was originally being led. We saw before why he had been first brought to Annas. Note the wickedness of Annas: although he ought to have released Christ, since he was without fault, he yet sent him tied to Caiaphas.

Commentary on John ↗