Adam Clarke on Acts 5:40

To him they agreed - That is, not to slay the apostles, nor to attempt any farther to imprison them; but their malevolence could not be thus easily satisfied; and therefore they beat them - probably gave each of them thirty-nine stripes; and, having commanded them not to speak in the name of Jesus, they let them go. It was of Jesus they were afraid: not of the apostles. They plainly saw that, if the doctrine of Christ was preached, it must prevail; and, if it prevailed, they must come to nought. It was a wise saying of the popish bishops in the time of Queen Mary - If we do not put down this Printing, it will put us down: They labored to put down the printing, but they could not; and, under God, the printing, by exposing the wickedness of their doctrine and practices, and especially by multiplying copies of the New Testament, did most effectually put them down.