is ... parted - parts, so as to diffuse itself over the whole earth, though seeming to come from one point. Light travels from the sun to the earth, ninety millions of miles, in eight minutes.
which scattereth - rather, “And by what way the east wind (personified) spreads (scattereth) itself.” The light and east wind are associated together, as both come from one quarter, and often arise together (Jon 4:8).