'Sons of God' in the Bible

that the sons of God saw the daughters of men! that they were, fair, - so they took to themselves wives of whomsoever they chose,

The giants, were in the each in these days, and also, after that, when the sons of God began to go in unto the daughters of men, and sons were born to them, the same, were the heroes that were from age-past times the men of renown.