12 God saw how corrupt the earth had become, for all the people on earth had corrupted their ways.

Read Genesis 6:12 Using Other Translations

And God looked upon the earth, and, behold, it was corrupt; for all flesh had corrupted his way upon the earth.
And God saw the earth, and behold, it was corrupt, for all flesh had corrupted their way on the earth.
God observed all this corruption in the world, for everyone on earth was corrupt.