Let us do penance, brothers, let us do penance right away, because we no longer have any extended period of time, the very hour is quickly coming to an end for us, and the imminence of judgment is already preventing us from the opportunity to make amends. Let your penance get up and running, so that judgment may not outrun it, since the fact that the Lord has not yet come, that he still waits, and that he delays, means that his desire is for us to return to him and not to perish.
[Peter Chrysologus, Selected Sermons, Volume 3, Palardy, tr. Catholic University of America Press (Washington, DC: 2005) Sermon 167, section 5.]