en_tn_condensed/1ch/11/23.md

five cubits

A "cubit" is a unit of measurement equal to 46 centimeters. AT: "2.3 meters" (See: rc://en/ta/man/translate/translate-bdistance)

a spear like a weaver's beam

This compares the size of the spear with the size of a weaver's beam. AT: "a spear the size of a weaver's beam" (See: rc://en/ta/man/translate/figs-explicit)

he went down to him

"Benaiah went down to the Egyptian." This idiom means that he met him in battle. AT: "he attacked him" (See: rc://en/ta/man/translate/figs-idiom)