Exodus 32:4

ויצר אתו בחרט — One can translate this in two ways. The one is: to take ויצר in the sense of “tying up” (Hiphil of צרר) and בחרט in the sense of “a garment”, similar to (Isaiah 3:22) “and the mantles and the scarfs (והחריטים)”; ‎(2 Kings 5:23) “and bound (ויצר) two talents of silver in two cloths (חריטים)”. The other way is: to take ויצר in the sense of “forming figures” (Hiphil of צור) and חרט as denoting goldsmiths’ tool with which they engrave and cut figures into gold, like a writer’s stylus that incises letters on boards and tablets, as we find it in, (Isaiah 8:1) ‘‘[Take a great roll] and write on it with a man’s pen (חרט)”. This (the second explanation) is what Onkelos means when he renders the passage by וצר יתיה בזיפא and he formed it with a “זיפא”, a term which is connected with the word זיוף “forgery”. It is a tool with which letters and modelled figures are engraved in gold — a kind of work which they term niel in old French (cf. Rashi and our Note on Exodus 25:33), and by means of which seals are forged (מזיפין)‎. עגל מסכה A MOLTEN CALF — As soon as he (Aaron) had thrown it (the gold) into the fire in a melting pot the magicians amongst the mixed multitude who had come up with them from Egypt came and made it (the golden calf) by their magic art. There are some who say that Micah the idolator mentioned in Judges ch. 17, was there, who had been drawn forth from the foundations of a building in Egypt where he was nearly crushed. He had in his possession a “supernatural name” (שם) and a plate upon which Moses had written: “Come up, ox, come up, ox!” in order to raise the coffin of Joseph who is compared to an ox (cf. Deuteronomy 33:17) out of the Nile, and he cast it (the plate) into the melting pot and the calf (the young ox) came out (ויצא העגל הזה) (Midrash Tanchuma, Ki Tisa 19). מסכה MOLTEN is a term connected with מתכת, molten metal (ס and ת being interchanged in these words). Another explanation is: there were used in it (for making the golden calf) 125 talents of gold, corresponding to the numerical value of מסכה, which is 125 (Midrash Tanchuma, Ki Tisa 19). אלה אלהיך THESE ARE THY GODS, [O ISRAEL] — It does not state that they said “these are our gods, [O Israel]”; hence we may learn that it was the mixed multitude which came up from Egypt that gathered themselves together against Aaron, and it was they who made it and afterwards led Israel astray after it (Midrash Tanchuma, Ki Tisa 19).

וַיִּקַּ֣ח מִיָּדָ֗ם וַיָּ֤צַר אֹתוֹ֙ בַּחֶ֔רֶט וַֽיַּעֲשֵׂ֖הוּ עֵ֣גֶל מַסֵּכָ֑ה וַיֹּ֣אמְר֔וּ אֵ֤לֶּה אֱלֹהֶ֙יךָ֙ יִשְׂרָאֵ֔ל אֲשֶׁ֥ר הֶעֱל֖וּךָ מֵאֶ֥רֶץ מִצְרָֽיִם׃

And he received the gold at their hand, and fashioned it with a graving tool and made it a molten calf: and they said, These are thy gods, O Yisra᾽el, which brought thee up out of the land of Miżrayim.