Комментарий к Бамидбар 26:26

בני זבלון, The sons of Zevulun, etc. The verse alludes to Zevulun's particular contribution and to that tribe's spiritual achievements. The name סרד containing the same letters as the word סדר, "order or arrangement," means the same thing as סדר, just as the Torah on occasion reverses the order of the letters in the word כשב, "sheep," and spells it כבש. The idea is that Zevulun arranges all the material needs for Issachar so that the latter can study Torah without interruption. אלון is an expression for strength, i.e the oak tree; Proverbs 3,18 describes Torah as the tree of life for those who grasp it and support it. Vayikra Rabbah 25,1 elaborates that instead of speaking of the people who study Torah, Solomon spoke of those who support Torah, i.e. מחזיקים בה. Seeing that Zevulun supported Issachar's Torah study financially, the Torah alludes to this with the letters in the name of one of his sons אלון.