Lactantius

“ III.—Wisdom and Religion Cannot Be Separated: the Lord of Nature Must Necessarily Be the Father of Every One.
The worship of the gods, as I have taught in the former book, does not imply wisdom; not only because it gives up man, who is a divine animal, to earthly and frail things, but because nothing is fixed in it which may avail for the cultivation of the character and the framing of the life; nor does it contain any investigation of the truth, but only the rite of worship, which does not consist in the service of the mind, but in the employment of the body. ”

“ Nor can religion have any firmness, when it is without a fixed and settled dwelling-place. Therefore there can be no true worship of many gods; just as that cannot be called matrimony, in which one woman has many husbands, but she will either be called a harlot or an adulteress. For when a woman is destitute of modesty, chastity, and fidelity, she must of necessity be without virtue. Thus also the religious system of the gods is unchaste and unholy, because it is destitute of faith, for that unsettled and uncertain honour has no source or origin. ”

“ Therefore Jupiter is called father by those who pray to him, as is Saturnus, and Janus, and Liber, and the rest in order; which Lucilius [2] laughs at in the council of the gods: “So that there is none of us who is not called excellent father of the gods; so that father Neptunus, Liber, father Saturnus, Mars, Janus, father Quirinus, are called after one name.” But if nature does not permit that one man should have many fathers (for he is produced from one only) , therefore the worship of many gods is contrary to nature, and contrary to piety. ”