תִּזְרַ֣ח הַ֭שֶּׁמֶשׁ יֵאָסֵפ֑וּן וְאֶל־מְ֝עוֹנֹתָ֗ם יִרְבָּצֽוּן׃
The sun ariseth, they slink away, And couch in their dens.
Rashi on Psalms
When the sun rises they gather in into the secret places and hide there from the sons of men; then every man goes forth to his work.