16 But if you disbelieve, consider what befell Ananias and his companions. What streams did they pour out? How many vessels of water could quench the flame that rose up forty-nine cubits high? Nay, but where the flame mounted up a little too high, faith was there poured out as a river, and there spoke they the spell against all ills: Righteous are You, O Lord, in all the things that You have done to us: for we have sinned, and transgressed Your law. And their repentance quelled the flames. If you believe not that repentance is able to quench the fire of hell, learn it from what happened in regard to Ananias. But some keen hearer will say, Those men God rescued justly in that case: because they refused to commit idolatry, God gave them that power. And since this thought has occurred, I come next to a different example of penitence.
Source: Catechetical Lectures (New Advent)