“What shall we do?” [the crowd asked Peter]. They did what must be done. They condemned themselves and despaired of their salvation. This is what made them such as they were. They knew what a gift they had received. As soon as they heard, they were baptized. They did not speak these cold words that we do now, nor did they contrive delays, even though they heard all the requirements. For they did not hesitate when they were commanded to “save yourselves from this generation” but welcomed it. They showed their welcome through action and proved through deeds what sort of people they were.

—John Chrysostom, Homilies on the Acts of the Apostles 7.