John Gill Commentary Acts 23:7

"And when he had so said, there arose a dissension between the Pharisees and Sadducees; and the assembly was divided." — Acts 23:7 (ASV)

And when he had so said
He stopped and made a pause:

and there arose a dissension between the Pharisees and the
Sadducees ;
about the things which he had spoken of, particularly the resurrection of the dead; and this was what the apostle intended, so that his end was answered by the speech he made:

and the multitude was divided ;
that is, the members of the sanhedrim were divided, some being on one side of the question, and some on the other; for this multitude cannot design the multitude of the common people, who were not convened together on this occasion.