John Gill Commentary Acts 25:17

"When therefore they were come together here, I made no delay, but on the next day sat on the judgment-seat, and commanded the man to be brought." — Acts 25:17 (ASV)

Therefore when they were come here
To Caesarea, namely the chief priests and elders of the Jews:

without any delay on the morrow, I sat on the judgment seat :
that is, the next day after they came down, Festus went into the judgment hall, and took his place there, in order to hear this cause; which circumstance he mentions, to show how expeditious he was:

and I commanded the man to be brought forth :
from his place of confinement, to the hall, to answer for himself.