'Shaft' in the Bible

There [was] again a battle with [the] Philistines at Gob. And Elhanan the son of Jaare-Oregim, the Bethlehemite, killed Goliath the Gittite, the shaft of whose spear [was] like the beam of a weaver.

And if a man wants to touch them, he must use an iron instrument or the shaft of a spear; then they [are] consumed entirely with fire on the spot."