יָדַ֥ע שׁוֹר֙ קֹנֵ֔הוּ וַחֲמ֖וֹר אֵב֣וּס בְּעָלָ֑יו יִשְׂרָאֵל֙ לֹ֣א יָדַ֔ע עַמִּ֖י לֹ֥א הִתְבּוֹנָֽן׃
牛認得牠的主人，驢認得牠主人的槽；以色列卻不認識，我的子民也不省察。
Sha'arei Teshuvah
“You shall not profane My holy name” (Leviticus 22:32). This is among [the sins for which] one is liable for excision, as will be explained. And know that, is not the (greatest) damage and destruction found among the souls of the masses on the lips of the tongue? For they mention [God’s] name for nothing, and they also mention it without reverence. And about this matter did our Rabbis explain (Leviticus Rabbah 27) that which it is written (Isaiah 1:3), “Israel did not know.” And they are also not exacting about the cleanliness of the place and cleanliness of [their] palms.