John Gill Commentary Acts 4:5

"And it came to pass on the morrow, that their rulers and elders and scribes were gathered together in Jerusalem;" — Acts 4:5 (ASV)

And it came to pass on the morrow
The disciples being kept in custody all night:

that their rulers, and elders, and Scribes ;
that is, their ecclesiastical rulers; the chief priests, who, with the Scribes, and elders of the people, made up the great council at Jerusalem, consisting of seventy one persons, so they are called in (Matthew 26:3Matthew 26:57) (27:1) (Mark 14:53) (15:1) .