Miriam and Aaron use these questions to complain that Moses had so much authority and they did not. This can be expressed as a statement. AT: "Yahweh has not spoken only with Moses. He has also spoken with us." (See: [[rc://en/ta/man/translate/figs-rquestion]])
"Now" is used to mark a break in the main story line. The narrator tells background information about Moses' character. (See: [[rc://en/ta/man/translate/writing-background]])