John Calvin on Acts 5:11

11. And there came fear. He saith, again, that the punishment of one was a lesson to all. But he plainly expresseth in this place a double fear. He saith that the Church feared, because the faithful do never so perfectly fear God, but that they profit yet more, being admonished by his judgments. Therefore, by all those punishments which we read have been laid upon men in times past, and do daily see to be laid upon them, doth God call us back from the enticements and liberty of sinning. For our flesh must be bridled every now and then after this sort, because one bridle will scarce serve the turn. There was another manner [of] fear in the strangers, yet no such fear as brought them unto the sincere worship of God; yet, notwithstanding, it was such as caused them to give the glory to God.

Acts 5:12-16

12. And by the hands of the apostles were done many signs and wonders amongst the people. And they were all with one accord in the Porch of Solomon. 13. And of the other durst no man join himself to them: but the people magnified them. 14. And the multitude of those that believed in the Lord, both of men and women, grew more and more. 15. So that they brought forth the sick into the streets, and laid them in beds and couches, that at the least way the shadow of Peter, as he came, might shadow some of them. 16. And a multitude of the next cities came together to Jerusalem, bringing their sick, and those which were vexed with unclean spirits, which were all healed.