Albert Barnes Commentary Acts 22:30

"But on the morrow, desiring to know the certainty wherefore he was accused of the Jews, he loosed him, and commanded the chief priests and all the council to come together, and brought Paul down and set him before them." — Acts 22:30 (ASV)

On the morrow. After he had arrested Paul. Paul was still a prisoner; and if allowed to go free among the Jews, his life would have been in danger.

And commanded the chief priests, etc. He summoned a meeting of the Sanhedrin, or great council of the nation. He did this, as he was prevented from scourging Paul, in order to know what Paul had done, and so that he might learn from the Jews themselves the nature of the charge against him. This was necessary for Paul's safety and for the ends of justice. This should have been done without any attempt to torture him in order to extort a confession.

And brought Paul down. From the elevated castle or tower of Antonia. The council commonly assembled in the house of the high priest.

And set him before them. He brought the prisoner to their bar, so that they might have an opportunity to accuse him, and thus the chief captain might learn the real nature of the charge against him.