כָּל־אֵ֙לֶּה֙ חָֽבְר֔וּ אֶל־עֵ֖מֶק הַשִּׂדִּ֑ים ה֖וּא יָ֥ם הַמֶּֽלַח׃
Todos estes se ajuntaram no vale de Sidim <span class="x" onmousemove="Show('perush','Onde mais tarde após sua destruição, surgira o Mar Salgado (Mar Morto).');" onmouseout="Hide('perush');">(que é o Mar Salgado)</span>.
Rashi on Genesis
עמק השדים VALE OF SIDDIM — So it was named because it contained many fields (שדות)
Sforno on Genesis
כל אלה, all the ones just named, Amrafel and the two groups that conducted the war.