en_tn/exo/32/21.md

Then Moses said to Aaron, "What did this people ... a great sin on them?"

This can be stated as an indirect quote. Alternate translation: "Then Moses asked Aaron what the people do to him, that he have brought such a great sin on them" (See: rc://en/ta/man/translate/figs-quotations)

you have brought such a great sin on them

Moses spoke of causing people to sin as if sin were an object and Aaron put it on them. Alternate translation: "you have caused them to sin so terribly" (See: rc://en/ta/man/translate/figs-metaphor)