Passage
He hath made the moon for seasons: the sun knoweth his going down.
He hath made the moon for seasons: the sun knoweth his going down.
Psalms 103:17 There the sparrows shall make their nests. The highest of them is the house of the heron.
Psalms 103:18 The high hills are a refuge for the harts, the rock for the irchins.
Psalms 103:19 He hath made the moon for seasons: the sun knoweth his going down.
Psalms 103:20 Thou hast appointed darkness, and it is night: in it shall all the beasts of the woods go about:
Psalms 103:21 The young lions roaring after their prey, and seeking their meat from God.
The verse centers on "hath", "moon", "seasons", "knoweth", "going", and "down". It is saying that the verse draws attention to "hath" and "moon", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 18's "The high hills are a refuge for..." into verse 20's "Thou hast appointed darkness and it is...", so "hath" and "moon" belong inside that flow. In Psalms context, the local focus is worship, trust, the LORD's kingship, and covenant mercy.
A plain takeaway is to answer the verse's own emphasis on "hath" and "moon" with trust shaped by these words, not by a vague optimism outside the passage.