Charles H. Spurgeon on Psalms 139:9

The wings of the morning, is an elegant metaphor; and by them we may conjecture is meant the sunbeams, called "wings" because of their swift and speedy motion, making their passage so sudden and instantaneous, as that they do prevent the observation of the eye; called "the wings of the morning" because the dawn of the morning comes flying in upon these wings of the sun, and brings light along with it; and, by beating and fanning of these wings, scatters the darkness before it. "Now", saith the Psalmist, "if I could pluck these wings of the morning", the sunbeams, if I could imp (graft) my own shoulders with them; if I should fly as far and as swift as light, even in an instant, to the uttermost parts of the sea; yea, if in my flight I could spy out some solitary rock, so formidable and dismal as if we might almost call in question whether ever a Providence had been there; if I could pitch there on the top of it, where never anything had made its abode, but coldness, thunders, and tempests; yet there shall thy hand lead me, and thy right hand shall hold me." —Ezekiel Hopkins.