NET
45 But when the Jews saw the crowds, they were filled with jealousy, and they began to contradict what Paul was saying by reviling him.
Darby
45 But the Jews, seeing the crowds, were filled with envy, and contradicted the things said by Paul, [contradicting and] speaking injuriously.
KJV
45 But when the Jews saw the multitudes, they were filled with envy, and spake against those things which were spoken by Paul, contradicting and blaspheming.