This has a quotation within a quotation. A direct quotation can be stated as an indirect quotation. Alternate translation: "on the day of the assembly when you said that you did not want to hear the voice of Yahweh our God, nor see his great fire anymore, because you were afraid that you would die." (See:[[rc://en/ta/man/translate/figs-quotesinquotes]] and [[rc://en/ta/man/translate/figs-quotations]])
Here Yahweh is represented by his "voice" to emphasize what he says. Alternate translation: "Let us not hear Yahweh our God speak again" (See: [[rc://en/ta/man/translate/figs-synecdoche]])