Genesis 6:4; Numbers 13:33

The Nephilim1 were on the earth in those days, and also afterward, when the sons of God came in to the daughters of man and they bore children to them. These were the mighty men who were of old, the men of renown.

33 And there we saw the gNephilim (the sons of Anak, who come from the gNephilim), and we seemed to ourselves hlike grasshoppers, and so we seemed to them.