עמוס ה:ח פירוש: רש״י

and turns darkness into morning—There are some who live now in darkness, for whom I made it light.

and day He darkens as night—There is one for whom the time is favorable as the light of day, and I darken it as the night.

He Who calls the water of the sea—Jonathan renders: He Who said to gather camps as numerous as the water of the sea, and scatter them upon the face of the earth. And our Sages explained it as a reference to the generation of Enosh, when He caused the water of the ocean to inundate them. [from Mid. Psalms 88:2, Gen. Rabbah 23:7]