Jamieson, Fausset & Brown

Terrors--often mentioned in this book (Job 18:14; Job 24:17; &c.). The terrors excited through an evil conscience are here personified. "Magor-missabib" (Jer 20:3). drive . . . to his feet--rather, "shall pursue" (literally, "scatter," Hab 3:14) him close "at his heels" (literally, "immediately after his feet," Hab 3:5; Sa1 25:42; Hebrew). The image is that of a pursuing conqueror who scatters the enemy [UMBREIT].