When I looked for flood, then evil came unto me. Job was "looking for good," expecting fully the continuance of his great wealth and prosperity, when the sudden shock of calamity fell upon him It was wholly unexpected, and therefore the harder to bear.
And when I waited for light, there came darkness. This may refer to periods, after his calamities began, when he had hopes that his prayers would be answered, and a rest or pause, an interval of repose, be granted him (Job 9:34; Job 10:20), but when his hopes were disappointed, and the darkness closed in upon him thicker and murkier than ever.