Deuteronomy 3:13 The rest of Gilead, and all Bashan, the kingdom of Og, I gave to half the tribe of Manasseh. (All the region of Argob, with all Bashan, was called the land of the giants.
Joshua 17:15 So Joshua answered them, “If you are a great people, then go up to the forest country and clear a place for yourself there in the land of the Perizzites and the giants, since the mountains of Ephraim are too confined for you.”
Genesis 6:4 There were giants on the earth in those days, and also afterward, when the sons of God came in to the daughters of men and they bore children to them. Those were the mighty men who were of old, men of renown.
Giants is a relative term... The people Josuha saw were large men but in no means Giants as in like story book Giants