Victorinus of Pettau — On the Creation of the World (light / luminaries)
In the beginning God made the light, and divided it by a twelve-fold measure of hours, by day and by night, namely so that night might bring a place of rest over men's labors, and again day might overcome; by this alternate turn labor would be refreshed by rest, and rest again tempered by the exercise of day. On the fourth day He made two lights in heaven, a greater and a lesser, that the one might preside over the day, the other over the night (Gen. 1:16–17)—of sun and moon; and He set the other stars in heaven to shine upon the earth and to distinguish times and years and months and days and hours by their stations.
Latin
In principio fecit Deus lucem, eamque duodenario mero horarum, die noctuque, divisit, idcirco videlicet, ut laboribus hominum requies locum noctem dies superduceret, rursus dies supervinceret; hac se alterna vice labor quetis refoveretur, quies exercitatione rursus diei temperaretur. Quarto die fecit duo luminaria in coelo, majus et minus, ut alterum praeesset diei, alterum nocti (Genes., I, 16, 17), solis et lunae; caeteraque sidera posuit in coelo, ut lucerent super terram, et discernerent tempora et annos et menses et dies et horas per stationes.