Gregory the Great

Which same truth he conveys by the Prophet in few words, saying, "I have long time holden my peace, I have been still and refrained myself; now will I cry like a travailing woman." For as we have already before said, a woman in travail with pain gives forth that which she bore for long in her inner parts, He then that for long time held his peace, 'crieth like a travailing woman,' in that the Judge that shall come, who for long bore with the deeds of men without taking vengeance, sooner or later brings to light with hotness of examination, as if with pain of mind, the sentence of direful visiting which He kept within. Therefore let none despise this Lamp, when it is out of sight, lest He burn up His despisers when He shineth from heaven. For to whomsoever He does not now burn to give pardon, He shall then assuredly burn to award punishment. Therefore because by grace from above we are vouchsafed the season of our calling, whilst there is still the room left, let us by altering our ways for the better flee from the wrath of Him, Who is every where present. For him alone that visitation fails to find, whom correction keeps in hiding.