The moon for seasons. — See Psalms 89:37, Note. The mention of the inferior luminary first is no doubt partly due to its importance in fixing the calendar, but partly also to the diurnal reckoning, “the evening and the morning” as making the day.
The sun knoweth. — So Job 38:12’ of the dawn. The sun is no mere mechanical timepiece to the Israelite poet, but a conscious servant of God. How beautifully this mention of sunset prepares the way for the exquisite picture of the nocturnal landscape, as the sunrise in Psalms 104:22 does for the landscape of the day.
In Genesis the creation of the “heavenly bodies” — the fourth day’s work — is related in, so to speak, a scientific manner. But the poet, as in the former part of his treatment of the subject, at once goes to the influence of these phenomena on animated being. In Genesis the lamps of heaven are, as it were, hung out at God’s command; in the poem they seem to move to their office of guiding the seasons and illuminating the earth like living things who are conscious of the glorious function they have to perform.