Rabbi Abraham Joshua Heschel 20th cent. (as quoted by Rabbi Arthur Green)
"Why are we forbidden to make images of God? It is not because God is beyond all images, so that no image could possibly depict God. If that were the case, images would merely be harmless. God has an image, and that is you. You may not make the image of God because you are the image of God. The only medium in which you can make God's image is the medium of your entire life, and that is precisely what we are commanded to do. Everything you do, everything you say, each moment and the way you use it are all part of the way you build God's image. To take anything less than a full, living human being - like canvas or a piece of marble - and call it the image of God would be to diminish God, to lessen God's image.
... הֲדָא הוּא דִכְתִיב (משלי יא, יז): גֹּמֵל נַפְשׁוֹ אִישׁ חָסֶד, זֶה הִלֵּל הַזָּקֵן, שֶׁבְּשָׁעָה שֶׁהָיָה נִפְטַר מִתַּלְמִידָיו הָיָה מְהַלֵּךְ וְהוֹלֵךְ עִמָּם, אָמְרוּ לוֹ תַּלְמִידָיו רַבֵּנוּ לְהֵיכָן אַתָּה הוֹלֵךְ אָמַר לָהֶם לַעֲשׂוֹת מִצְוָה, אָמְרוּ לוֹ וְכִי מַה מִּצְוָה זוֹ, אָמַר לָהֶן לִרְחֹץ בְּבֵית הַמֶּרְחָץ, אָמְרוּ לוֹ וְכִי זוֹ מִצְוָה הִיא, אָמַר לָהֶם, הֵן. מָה אִם אִיקוֹנִין שֶׁל מְלָכִים שֶׁמַּעֲמִידִים אוֹתָן בְּבָתֵּי טַרְטִיאוֹת וּבְבָתֵּי קִרְקָסִיאוֹת, מִי שֶׁנִּתְמַנֶּה עֲלֵיהֶם הוּא מוֹרְקָן וְשׁוֹטְפָן וְהֵן מַעֲלִין לוֹ מְזוֹנוֹת, וְלֹא עוֹד אֶלָּא שֶׁהוּא מִתְגַּדֵּל עִם גְּדוֹלֵי מַלְכוּת, אֲנִי שֶׁנִּבְרֵאתִי בְּצֶלֶם וּבִדְמוּת, דִּכְתִיב (בראשית ט, ו): כִּי בְּצֶלֶם אֱלֹהִים עָשָׂה אֶת הָאָדָם, עַל אַחַת כַּמָּה וְכַמָּה.
... Here it is written, "The merciful man does good to his own soul (Proverbs 11:17)," this [refers to] Hillel the Elder, who, at the time that he was departing from his students, would walk with them. They said to him, "Rabbi, where are you walking to?" He said to them, "To fulfill a commandment!" They said to him, "And what commandment is this?" He said to them, "To bathe in the bathhouse." They said to him: "But is this really a commandment?" He said to them: "Yes. Just like regarding the statues of kings, that are set up in the theaters and the circuses, the one who is appointed over them bathes them and scrubs them, and they give him sustenance, and furthermore, he attains status with the leaders of the kingdom; I, who was created in the [Divine] Image and Form, as it is written, "For in the Image of G-d He made Man (Genesis 9:6)," even more so!...