About the Planting of Noah (118-119)

for the light which is perceptible by the outward senses, and held in honour, being that which throws the most brilliant light both upon itself and upon other things, and upon its own parents the sun and the moon, and upon the most sacred company of the stars, which by their rising and setting fix the boundaries of night and day, and moreover, of months and years, and which have shown the nature of number, to which, also, the greatest good of the soul is attributed, Moses says was created on the fourth day.

And now he honours this day in a remarkable degree, assigning the fruit of the trees to God, in accordance with no other time than with the fourth year after they are planted;