en_tn/1sa/17/17.md

ephah

An ephah is a unit of measurement equal to about 22 liters. (See: rc://en/ta/man/translate/translate-bvolume)

the captain of their thousand

"the captain of your brothers' thousand." Possible meanings are 1) the word "thousand" represents the exact amount of soldiers that this captain led. AT: "the captain of your brothers' unit of 1,000 soldiers" or 2) the word translated as "thousand" does not represent exact number, but is the name of a large military division. AT: "the captain of your brothers' military division" (See: rc://en/ta/man/translate/translate-numbers)

See how your brothers are doing

"Check and find out how your brothers are doing"