2 Corinthians 11:24 - Matthew Poole's English Annotations on the Holy Bible

God, to restrain the passions of his people, which might carry them out to cruelty in the punishments of malefactors, forbade the Jewish magistrates to give any malefactor above forty stripes; (so many they might give them by the Divine law, Deuteronomy 25:3); but they had made an order, that none should receive above thirty-nine. This was amongst their constitions which they called sepimenta legis, hedges to the Divine law; which indeed was a violation of the law: for that did not oblige them to give every malefactor, that had not deserved death, so many stripes; it gave them only a liberty to go so far, but they were not to exceed. Some think, that they punished every such malefactor with thirty-nine stripes: others, more rationally, think, that they did not so, but thirty-nine was the highest number they laid upon any. And it is most probable, that, out of their hatred to the apostle, they laid as many stripes upon him as their constitution would suffer them to do.