[94] Let him also consider whether the place and the time are suitable; for before now I have known some persons, in profane and impure places (in which it is not fitting that mention should be made of either their father or their mother, or of even any old man among their kindred who may have lived a virtuous life), swearing, and stringing together whole sentences full of oaths, using the name of God with all the variety of titles which belong to him, when they should not, out of sheer impiety.