Charles Spurgeon Commentary Acts 26:10-11

"And this I also did in Jerusalem: and I both shut up many of the saints in prisons, having received authority from the chief priests, and when they were put to death I gave my vote against them. And punishing them oftentimes in all the synagogues, I strove to make them blaspheme; and being exceedingly mad against them, I persecuted them even unto foreign cities." — Acts 26:10-11 (ASV)

And many of the saints did I shut up in prison, having received authority from the chief priests; and when they were put to death, I gave my voice against them. And punished them oft in every synagogue, and compelled them to blaspheme; and being exceedingly mad against them, I persecuted them even unto strange cities.

Paul was a whole-hearted man; whatever he did, he did intensely; so that, when he did wrong, he did it with a kind of madness. Such a furious hatred of Jesus of Nazareth was upon him that all Judaea was not large enough for the indulgence of his persecuting malice against the saints, so he persecuted them even unto strange cities.