Numbers 13:31-33

³¹And the men who have gone up with him said, 'We are not able to go up against the people, for it is stronger than we;'

³²and they bring out an evil account of the land which they have spied unto the sons of Israel, saying, 'The land into which we passed over to spy it, is a land eating up its inhabitants; and all the people whom we saw in its midst are men of stature;

³³and there we saw the Nephilim, sons of Anak, of the Nephilim; and we are in our own eyes as grasshoppers; and so we were in their eyes.'