Use the Torah scroll
He used his knowledge of the Torah for his needs or to benefit his family.
("And she cried out, and wept, and fell down before his feet, saying unto him, Lord, my Mary, be healed. And all this for a reason, that she would not be touched with the crown of the Torah, for whosoever toucheth the crown of the Torah shall have no portion in the world to come" - Masekatot Ketanot Masekhet Kella, chapter 1, and so: "Great rabbis, great men of the Torah, and when they returned to Jerusalem, they did not They made it known that they did not want to be deprived of the crown of the Torah in the house of the life of the Torah" - Agnon/ Tamol Shilshom, 199)
Translation
Expression (Hebrew)
הִשְׁתַּמֵּשׁ בְּכֶתֶר תּוֹרָה
Definition (Hebrew)
הִשְׁתַּמֵּשׁ בִּידִיעוֹתָיו בַּתּוֹרָה לִצְרָכָיו אוֹ לַהֲפָקַת תּוֹעֶלֶת עֲבוּרוֹ.
("וְהָיָה צוֹעֵק וּבוֹכֶה וּמִתְנַפֵּל לִפְנֵי רַגְלָיו, אָמַר לוֹ אֲדוֹנִי מָרִי, מָחוֹל לִי. וְכָל כָּךְ לָמָּה, שֶׁלֹּא רָצָה לְהִשְׁתַּמֵּשׁ בְּכֶתֶר תּוֹרָה, שֶׁכָּל הַמִּשְׁתַּמֵּשׁ בְּכֶתֶר תּוֹרָה אֵין לוֹ חֵלֶק לָעוֹלָם הַבָּא"- מַסֶּכְתּוֹת קְטַנּוֹת מַסֶּכֶת כַּלָּה פֶּרֶק א, וְכֵן:"רַבָּנִים גְּדוֹלִים אַדִּירֵי תּוֹרָה, וּמִשֶּׁבָּאוּ לִירוּשָׁלַיִם לֹא פִּרְסְמוּ אֶת עַצְמָם, שֶׁלֹּא רָצוּ לְהֵנוּת מִכִּתְרָהּ שֶׁל תּוֹרָה בְּבֵית חַיּוּתָהּ שֶׁל הַתּוֹרָה"- עַגְנוֹן/ תְּמוֹל שִׁלְשׁוֹם, 199)