THE BIBLE SAYS THERE WERE GIANTS:

     And there we saw the giants, the sons of Anak, which come of the giants: and we were in our own sight as grasshoppers, and so we were in their sight. Numbers 13:33
     And they ascended by the south, and came unto Hebron; where Ahiman, Sheshai, and Talmai, the children of Anak, were. (Now Hebron was built seven years before Zoan in Egypt.) Numbers 13:22
     Nevertheless the people be strong that dwell in the land, and the cities are walled, and very great: and moreover we saw the children of Anak there. Numbers 13:28
 

SO HOW TALL WOULD THEY BE?