Genesis 6:4

Now the giants were upon the earth in those days; and after that when the sons of God were wont to go in to the daughters of men, they bore [children] to them, those were the giants of old, the men of renown.

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.

The Nephilim were in the earth in those days, and also after that, when God’s sons came in to men’s daughters and had children with them. Those were the mighty men who were of old, men of renown.