Exodus 32:20

ויזר AND STREWED IT — The verb זרה denotes scattering about, similar to, (Job 18:15) “Brimstone shall be scattered (יזרה) upon his habitation”; (Proverbs 1:17) “Surely in vain the net is strewn (מזורה) [in the sight of any bird]” where this expression is used because people usually bestrew it (the net) with grain and pulse. וישק את בני ישראל AND HE GAVE THE CHILDREN OF ISRAEL TO DRINK OF IT — He intended to put them to the test as faithless wives were tried (cf. Numbers 5:12—31) (Avodah Zarah 44a). Three different death-penalties were inflicted there: It there were witnesses to the act of idolatry and a legal warning had preceded the deed the offender was put to death by the sword (cf. vv. 27, 28) as was the regulation regarding the inhabitants of an apostate city (Deuteronomy 13:13—18) when there were many (as was the case here; a single idolator, however, was subject to the death by stoning; cf. Deuteronomy 17:2—5). If there were witnesses but there had been no caution, they were destroyed by the plague, as it is said, (v. 35) “And the Lord plagued the people”. In cases where there were neither witnesses nor warning they were punished by dropsy — for the water which Moses gave them to drink put them to the test and if they were guilty their bellies swelled (cf. Yoma 66b).

וַיִּקַּ֞ח אֶת־הָעֵ֨גֶל אֲשֶׁ֤ר עָשׂוּ֙ וַיִּשְׂרֹ֣ף בָּאֵ֔שׁ וַיִּטְחַ֖ן עַ֣ד אֲשֶׁר־דָּ֑ק וַיִּ֙זֶר֙ עַל־פְּנֵ֣י הַמַּ֔יִם וַיַּ֖שְׁקְ אֶת־בְּנֵ֥י יִשְׂרָאֵֽל׃

And he took the calf which they had made, and burnt it in the fire, and ground it to powder, and scattered it upon the water, and made the children of Yisra᾽el drink of it.