וַיְדַבֵּ֧ר יְהוָ֛ה אֲלֵיכֶ֖ם מִתּ֣וֹךְ הָאֵ֑שׁ ק֤וֹל דְּבָרִים֙ אַתֶּ֣ם שֹׁמְעִ֔ים וּתְמוּנָ֛ה אֵינְכֶ֥ם רֹאִ֖ים זוּלָתִ֥י קֽוֹל׃
И сказал вам Господь из среды огня; вы слышали голос слов, но не видели формы; только голос.
Genesis
He [Yitzchok] did not recognize him because his hands were like those of Eisov, his brother—they were hairy—and [thus] he blessed him.