Avot5: 19
כָּל מִי שֶׁיֵּשׁ בְּיָדוֹ שְׁלשָׁה דְבָרִים הַלָּלוּ — מִתַּלְמִידָיו שֶׁל אַבְרָהָם אָבִינוּ; וּשְׁלשָׁה דְבָרִים אֲחֵרִים — מִתַּלְמִידָיו שֶׁל בִּלְעָם הָרָשָׁע. עַיִן טוֹבָה, וְרוּחַ נְמוּכָה, וְנֶפֶשׁ שְׁפָלָה — מִתַּלְמִידָיו שֶׁל אַבְרָהָם אָבִינוּ; עַיִן רָעָה, וְרוּחַ גְּבוֹהָה, וְנֶפֶשׁ רְחָבָה — מִתַּלְמִידָיו שֶׁל בִּלְעָם הָרָשָׁע.  מַה בֵּין תַּלְמִידָיו שֶׁל אַבְרָהָם אָבִינוּ לְתַלְמִידָיו שֶׁל בִּלְעָם הָרָשָׁע? תַּלְמִידָיו שֶׁל אַבְרָהָם אָבִינוּ אוֹכְלִין בָּעוֹלָם הַזֶּה וְנוֹחֲלִין בָּעוֹלָם הַבָּא, שֶׁנֶּאֱמַר: ”לְהַנְחִיל אֹהֲבַי יֵשׁ, וְאֹצְרֹתֵיהֶם אֲמַלֵּא”. אֲבָל תַּלְמִידָיו שֶׁל בִּלְעָם הָרָשָׁע יוֹרְשִׁין גֵּיהִנֹּם וְיוֹרְדִין לִבְאֵר שַׁחַת, שֶׁנֶּאֱמַר: ”וְאַתָּה אֱלֹהִים תּוֹרִדֵם לִבְאֵר שַׁחַת, אַנְשֵׁי דָמִים וּמִרְמָה לֹא־יֶחֱצוּ יְמֵיהֶם, וַאֲנִי אֶבְטַח־בָּךְ”.
Anyone who has in his hand the following three things is [counted] among the stu- dents of our patriarch Abraham, and [any-one who has in his hand] three other things is [counted] among the students of the evil Balaam. (1) [One who has] a good eye, (2) a humble spirit, (3) and a reserved nature is [counted] among the students of our patriarch Abraham. [And one who has] an evil eye, a haughty spirit, (3) and an indulgent nature is [counted] among the students of the evil Balaam.  What is the difference between students of our patriarch Abraham and students of the evil Balaam? Students of our patriarch Abraham eat in this world and inherit in the next world, as it is stated: I [the Torah] have what to bequeath [to] those who love me, and I shall fill their storehouses. But students of the evil Balaam inherit Gehinnom and descend to the well of destruction, as it is stated: And You, O God, You will lower them into the well of destruction, men of bloodshed and deceit shall not live out half their days; but as for me, I will trust in You.