en_tn/2sa/21/19.md

Elhanan son of Jair the Bethlehemite killed Goliath the Gittite

Some versions translate this as "Elhanan son of Jair the Bethlehemite killed the brother of Goliath the Gittite." (See: rc://en/ta/man/translate:translate_textvariants)

Elhanan son of Jair ... Goliath

These are names of men. (See: rc://en/ta/man/translate/translate-names)

Bethlehemite ... Gittite

These are names of people groups. (See: rc://en/ta/man/translate/translate-names)

whose spear was like a weaver's beam

When a person was weaving a cloth he would run the threads through hooks attached to large sticks called a "weaver's beam." This means Goliath's spear was larger than a normal spear. (See: rc://en/ta/man/translate/figs-simile)