And all flesh died that moved upon the earth, both of fowl, and of cattle,
and of beast, and of every creeping thing that creepeth upon the earth, and
every man:
All in whose nostrils was the breath of life, of all that was in the dry land, died.
And every living substance was destroyed which was upon the face of the ground,
both man, and cattle, and the creeping things, and the fowl of the heaven;
and they were destroyed from the earth: and Noah only remained alive, and
they that were with him in the ark.
There were giants in the earth in those days; and also after that, when the
sons of God came in unto the daughters of men, and they bare children to
them, the same became mighty men which were of old, men of renown.
And there we saw the giants, the sons of Anak, which come of the giants:
and we were in our own sight as grasshoppers, and so we were in their sight.
The giants of Genesis 6:4 and Numbers 13:33 are called "the Nephilium" in other translations.
Revised Standard Version
Gen 6:4 The Nephilim were on the earth in those days, and also afterward,
when the sons of God came in to the daughters of men, and they bore children
to them. These were the mighty men that were of old, the men of renown.
Num.13:33 And there we saw the Nephilim (the sons of Anak, who come
from the Nephilim); and we seemed to ourselves like grasshoppers, and so
we seemed to them.