'Weaver's' in the Bible

He killed an Egyptian also, a man of great stature, five cubits tall. In the Egyptian’s hand was a spear like a weaver’s beam, and Benaiah went down to him with [only] a staff (rod) and grabbed the spear from the Egyptian’s hand and killed him with his own spear.

There was war again with the Philistines, and Elhanan the son of Jair killed Lahmi the brother of Goliath the Gittite, the shaft of whose spear was like a weaver’s beam.