# Gob

This is the name of a city.

# Bethlehemite ... Gittite

These are names of people groups. 

# staff

a long and thin pole.

# the staff of whose spear was like a weaver's beam

A weaver's beam was a very large piece of wood used to stretch strings as the threads of a rug are weaved together around them. This means the handle of Lahmi's spear was very large.