Genesis VI., 2, says that the sons of God took wives from the daughters of men. These sons of God were not Angels, but the descendants of Seth, whilst carnal and fleshly men were the descendants of Cain. God was rightly angry with these mixed marriages between those who knew the true religion and those who had forgotten and abandoned it. As for the giants, the children of these unions were monsters rather in violence and wickedness than in size, though they were probably big men, and independent in their self-sufficient strength.
Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty