Psalms 136:7

To him that made great lights: for his mercy [endureth] for ever:

Ver. 7. To him that made great lights] Without which we should have no more comfort of the air we breathe in than the Egyptians had in that three days' darkness. Now the sun and moon are called great luminaries, not great stars or bodies (for the sun is less than some stars, and the moon is least of all), first, for the excellence of light which these two do more abundantly impart to the earth; and, secondly, for the effects they work; the sun by his access making all green and flourishing, and the contrary by his recess; the moon by its various aspect causing humours and marrows to increase or decrease, &c.