New International Version
The Nephilim were on the earth in those days--and also afterward--when the sons of God went to the daughters of humans and had children by them. They were the heroes of old, men of renown.

American Standard Version
The Nephilim were in the earth in those days, and also after that, when the sons of God came unto the daughters of men, and they bare children to them: the same were the mighty men that were of old, the men of renown.

Berean Study Bible
The Nephilim were on the earth in those days—and afterward as well—when the sons of God had relations with the daughters of men. And they bore them children who became the mighty men of old, men of renown.

Douay-Rheims Bible
Now giants were upon the earth in those days. For after the sons of God went in to the daughters of men and they brought forth children, these are the mighty men of old, men of renown.

English Revised Version
The Nephilim were 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 were the mighty men which were of old, the men of renown.

King James Bible
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.

World English Bible
The Nephilim were in the earth in those days, and also after that, when God's sons came in to men's daughters. They bore children to them. Those were the mighty men who were of old, men of renown.

Young's Literal Translation
The fallen ones were in the earth in those days, and even afterwards when sons of God come in unto daughters of men, and they have borne to them -- they are the heroes, who, from of old, are the men of name.

Genesis 6:4 Additional Translations ...