Ambrose of Milan
Catena Aurea · Lukasevangelium 12
And I say unto you my friends, Be not afraid of them that kill the body, and after that have no more that they can do. But I will forewarn you whom ye shall fear: Fear him, which after he hath killed hath power to cast into hell; yea, I say unto you, Fear him. Are not five sparrows sold for two farthings, and not one of them is forgotten before God? But even the very hairs of your head are all numbered. Fear not therefore: ye are of more value than many sparrows.
For our natural death is not the end of punishment: and therefore He concludes that death is the cessation of bodily punishment, but the punishment of the soul is everlasting. And God alone is to be feared, to whose power nature prescribes not, but is herself subject; adding, Yea, I say unto you, Fear him.