They weren't able to give an answer.
Nobody could answer him, and from then on nobody dared to ask him any more questions.
What he said shamed all his opponents, but everyone in the crowd was delighted by all the wonderful things he was doing.
They weren't able to trap him by what he told the people. They were stunned at his reply, and fell silent.
After this no one dared to ask him any more questions.
for I will give you words of wisdom that your enemies won't be able to dispute or contradict.
But they weren't able to stand against Stephen's wisdom or the Spirit with which he was speaking.