5:7 man is born to trouble. Eliphaz’s point is that trouble does not spring up spontaneously like a weed, but has to have been sown by those who reap it.
as the sparks fly upward. Lit. “the sons of Resheph fly upward.” Resheph was the god of pestilence, lightning, and destruction. A similar idiom is used in Song 8:6, where love is described as “flashes of fire.” In other places the idiom is used for bolts of lightning (Ps. 78:48) and of pestilence (Deut. 32:24; Hab. 3:5).