Rambam, Hilchot Teshuvah – Serving God from Love and Fear
Mishneh Torah, Repentance 10:1-6
The Rambam distinguishes between serving God from fear (yirah) and from love (ahavah), describing yirat chet (fear of punishment) as a lower level and yirat ha-romemut (awe of Divine majesty) as the higher form; he explains the path from one to the other.
אַל יֹאמַר אָדָם הֲרֵינִי עוֹשֶׂה מִצְוֹת הַתּוֹרָה וְעוֹסֵק בְּחָכְמָתָהּ כְּדֵי שֶׁאֲקַבֵּל כָּל הַבְּרָכוֹת הַכְּתוּבוֹת בָּהּ אוֹ כְּדֵי שֶׁאֶזְכֶּה לְחַיֵּי הָעוֹלָם הַבָּא, וְאֶפְרשׁ מִן הָעֲבֵרוֹת שֶׁהִזְהִירָה תּוֹרָה מֵהֶן כְּדֵי שֶׁאֶנָּצֵל מִן הַקְּלָלוֹת הַכְּתוּבוֹת בַּתּוֹרָה אוֹ כְּדֵי שֶׁלֹּא אֶכָּרֵת מֵחַיֵּי הָעוֹלָם הַבָּא. אֵין רָאוּי לַעֲבֹד אֶת ה' עַל הַדֶּרֶךְ הַזֶּה, שֶׁהָעוֹבֵד עַל דֶּרֶךְ זֶה הוּא עוֹבֵד מִיִּרְאָה וְאֵינָהּ מַעֲלַת הַנְּבִיאִים וְלֹא מַעֲלַת הַחֲכָמִים. וְאֵין עוֹבְדִים ה' עַל דֶּרֶךְ זֶה אֶלָּא עַמֵּי הָאָרֶץ וְהַנָּשִׁים וְהַקְּטַנִּים שֶׁמְּחַנְּכִין אוֹתָן לַעֲבֹד מִיִּרְאָה עַד שֶׁתִּרְבֶּה דַּעְתָּן וְיַעַבְדוּ מֵאַהֲבָה: כָּל הָעוֹסֵק בַּתּוֹרָה כְּדֵי לְקַבֵּל שָׂכָר אוֹ כְּדֵי שֶׁלֹּא תַּגִּיעַ עָלָיו פֻּרְעָנוּת הֲרֵי זֶה עוֹסֵק שֶׁלֹּא לִשְׁמָהּ. וְכָל הָעוֹסֵק בָּהּ לֹא לְיִרְאָה וְלֹא לְקַבֵּל שָׂכָר אֶלָּא מִפְּנֵי אַהֲבַת אֲדוֹן כָּל הָאָרֶץ שֶׁצִּוָּה בָּהּ הֲרֵי זֶה עוֹסֵק בָּהּ לִשְׁמָהּ. וְאָמְרוּ חֲכָמִים לְעוֹלָם יַעֲסֹק אָדָם בַּתּוֹרָה וַאֲפִלּוּ שֶׁלֹּא לִשְׁמָהּ שֶׁמִּתּוֹךְ שֶׁלֹּא לִשְׁמָהּ בָּא לִשְׁמָהּ. לְפִיכָךְ כְּשֶׁמְּלַמְּדִין אֶת הַקְּטַנִּים וְאֶת הַנָּשִׁים וּכְלַל עַמֵּי הָאָרֶץ אֵין מְלַמְּדִין אוֹתָן אֶלָּא לַעֲבֹד מִיִּרְאָה וּכְדֵי לְקַבֵּל שָׂכָר, עַד שֶׁתִּרְבֶּה דַּעְתָּן וְיִתְחַכְּמוּ חָכְמָה יְתֵרָה מְגַלִּים לָהֶם רָז זֶה מְעַט מְעַט וּמַרְגִּילִין אוֹתָן לְעִנְיָן זֶה בְּנַחַת עַד שֶׁיַּשִּׂיגוּהוּ וְיֵדְעוּהוּ וְיַעַבְדוּהוּ מֵאַהֲבָה:
A person should not say: "I will fulfill the mitzvot of the Torah and occupy myself in its wisdom in order to receive all the blessings which are contained within it or in order to merit the life of the world to come." "[Similarly,] I will separate myself from all the sins which the Torah warned against so that I will be saved from all the curses contained in the Torah or so that [my soul] will not be cut off from the life of the world to come." It is not fitting to serve God in this manner. A person whose service is motivated by these factors is considered one who serves out of fear. He is not on the level of the prophets or of the wise. The only ones who serve God in this manner are common people, women, and minors. They are trained to serve God out of fear until their knowledge increases and they serve out of love. Anyone who occupies himself with the Torah in order to receive reward or in order to protect himself from retribution is considered as one who is not occupied for the God's sake. [In contrast,] anyone who occupies himself with it, not because of fear, nor to receive a reward, but rather because of his love for the Lord of the entire earth who commanded it, is one who occupies himself for God's sake. Nevertheless, our Sages declared: A person should always occupy himself with the Torah even when it is not for God's sake for out of [service which is not intended] for God's sake will come service that is intended for God's sake. Therefore, when one teaches children, women, and most of the common people, one should teach them to serve out of fear and in order to receive a reward. As their knowledge grows and their wisdom increases, this secret should be revealed to them [slowly,] bit by bit. They should become accustomed to this concept gradually until they grasp it and know it and begin serving [God] out of love.
Why it matters — The Rambam's systematic halakhic and philosophical account of what yirat shamayim means and its relationship to ahavat Hashem.