Sifrei Devarim Paragraph 115
Can copy this into an AI, or connect the whole library to your assistant. For deeper learning, you can directly use the original seforim, sites, and apps.
(דברים טו ה) רַק אִם שָׁמוֹעַ תִּשְׁמַע בְּקוֹל ה׳ אֱלֹהֶיךָ, מִכָּן אָמְרוּ: שָׁמַע אָדָם קִמְעָה – מַשְׁמִיעִים אוֹתוֹ הַרְבֵּה, שָׁמַע אָדָם דִּבְרֵי תוֹרָה – מַשְׁמִיעִים אוֹתוֹ דִּבְרֵי סוֹפְרִים.
(Devarim 15:5) "Only if you hearken to the voice of the L-rd your G-d": From here they stated: If a man hearkens but a little, he is given to hear much. If he hearkens to the words of Torah, he is given to hear the words of the scribes.
לִשְׁמֹר לַעֲשׂוֹת אֶת כָּל הַמִּצְוָה הַזֹּאת – שֶׁתְּהֵא מִצְוָה קַלָּה חֲבִיבָה עָלֶיךָ כְּמִצְוָה חֲמוּרָה.
"to observe to do this entire mitzvah": that a "slight one" be as beloved by you as a "weighty one."