en_tn/deu/09/10.md

on them was written everything just like all the words that Yahweh announced to you

This can be stated in active form. Alternate translation: "Yahweh wrote on them the same words he had said to you" (See: rc://en/ta/man/jit/figs-activepassive)

Yahweh announced ... out of the middle of the fire

It was as if Yahweh were a person standing in the middle of a fire and speaking with a loud voice.

on the day of the assembly

The abstract noun "assembly" can be expressed as the verb "gather together." Alternate translation: "on the day when you Israelites all came and met together in one place" (See: rc://en/ta/man/jit/figs-abstractnouns)