'Eight' in the Bible

Then Ishbi-benob, one of the descendants of the giant, whose bronze spear weighed about eight pounds and who wore new armor, intended to kill David.

These be the names of the mighty men whom David had: The Tachmonite that sat in the seat, chief among the captains; the same was Adino the Eznite: he lift up his spear against eight hundred, whom he slew at one time.

And Joab gave up the sum of the number of the people unto the king: and there were in Israel eight hundred thousand valiant men that drew the sword; and the men of Judah were five hundred thousand men.