were hardened, etc. - implying that others, probably a large number, believed.
spake evil of that way before the multitude, he departed - from the synagogue, as at Corinth (Act 18:7).
and separated the disciples - withdrawing to a separate place of meeting, for the sake both of the converts already made, and the unsophisticated multitude.
disputing - “discoursing” or “discussing.”
daily in the school - or lecture hall.
of one Tyrannus - probably a converted teacher of rhetoric or philosophy.