מִבֶּ֨ן שְׁלֹשִׁ֤ים שָׁנָה֙ וָמַ֔עְלָה וְעַ֖ד בֶּן־חֲמִשִּׁ֣ים שָׁנָ֑ה כָּל־בָּא֙ לַצָּבָ֔א לַעֲשׂ֥וֹת מְלָאכָ֖ה בְּאֹ֥הֶל מוֹעֵֽד׃
dai trent'anni in su fino ai cinquant'anni, chiunque entra a prestar servizio per compiere un lavoro nella tenda di convegno.
On Flight and Finding
[37] It was on this principle too that the Levites were charged to perform their active service until the age of fifty (Numb. 4:3 ff.), but, when released from their practical ministry, to make everything an object of observation and contemplation; receiving as a prize for duty well done in the active life a quite different way of life whose delight is in knowledge and study of principles alone.