Commentary for Genesis 7:21

ויגוע...וכל האדם, the reason the word האדם is mentioned last, is to tell us that even man, who thanks to his intelligence and foresight could have been expected to find ways of escaping this disaster by taking refuge on top of the mountains, etc., was unable to save himself. The 15 cubits of water that covered even the tallest of the mountains made it impossible for any person to survive. The addition of the word וכל, includes even the giants drowned in these waters. The expression גויעה as a description of dying, refers to prompt death, as opposed to lingering death. People who drown die without prolonged agony.

Siehe oben 6, 17.