What does Genesis 7:22 mean?
These last few verses of Genesis 7 seem to repeat the same idea over and over. This is not an accident. Repetition in ancient literature was often used to emphasize the truth or importance of a statement. In this case, God had promised to "blot out" all mankind, and every land- and air-dwelling creature, as judgment on mankind's sin (Genesis 6:13).Some debate whether this judgment by God required a planet-wide event, or a flood confined to the regions inhabited by men. For the purposes of the story, such a question is actually beside the point. As this verse makes clear, everything not protected from the flood by the ark died. Every land-dwelling, air-breathing thing confronted by the flood was killed, including every single human being other than Noah and his immediate family.
Interestingly, no mention is made of fish or other sea-dwelling creatures, who apparently survived the flood. Or, who at least were able to survive in sufficient numbers that there was no need for Noah to preserve them on the ark. God's judgment was limited to the land, as it was a response to humanity's pervasive evil (Genesis 6:5).
Genesis 7:11–24 describes the greatest disaster in world history: the flood. For forty days and nights, rain falls from above, and underground water rushes from below. As a result, floodwaters fully cover the surface of the land for another 110 days. The ark, built as God has instructed Noah, is able to float and survive the deluge. Every land-dwelling, air-breathing human and creature dies, except for those aboard the ark.
Genesis 7 tells the story of the actual flood itself. God again commends Noah for his righteousness. The animals of every kind come to the ark. God shuts Noah and his family and the animals in, and it begins to rain. Water pours from above and bursts forth from below with incredible intensity. This outpouring of water lasts for 40 days, and covers the surface of the earth for another 110 days. The ark floats, rises, moves across the surface of the water. Outside of it, every land-dwelling, air-breathing thing dies. God wipes it all out, including every human being other than Noah and his family.