כָּל־הַדְּבָרִ֣ים יְגֵעִ֔ים לֹא־יוּכַ֥ל אִ֖ישׁ לְדַבֵּ֑ר לֹא־תִשְׂבַּ֥ע עַ֙יִן֙ לִרְא֔וֹת וְלֹא־תִמָּלֵ֥א אֹ֖זֶן מִשְּׁמֹֽעַ׃
만물의 피곤함을 사람이 말로 다 할 수 없나니 눈은 보아도 족함이 없고 귀는 들어도 차지 아니하는도다
Sefer HaBahir
[Rabbi Rachumai continued,] "Another interpretation: 'I have heard of Your renown; I am awed' (Habakkuk 3:2). [Meaning,] 'I understood Your renown; I am awed.' What did he understand, such that he was awed? He understood the thought of the Blessed Holy One. Just as there is no end to the thought of a person, which can carry to the end of the world, so too, the ear does not have an end and is not sated, as is written, 'The ear is not filled from hearing' (Ecclesiastes 1:8). Why is [the letter] Zayin in ear [אוזן]? Why? Because the ear is in the image of [the letter] Aleph, and Aleph> is essence of the ten utterances. Thus, 'the ear is not filled from hearing.'"