שמואל א יז:יב פירוש: רש״י

Ephrathite. Beis Lechem is located in the land of Ephros.⁵See Bereishis 35:19.

And he had eight sons. And that which is stated, 'Otzem, the sixth, Dovid the seventh,'⁶I Divrei Hayomim 2:15. and no more is stated. This may be reconciled that one died childless and therefore, he was not mentioned there.

Among the elders. Counted in the gatherings of important people.⁷ See Maseches Berachos 58a, which states that wherever Yishay went he was accompanied by a large crowd.