Deuteronomy 4:32-33

32“Indeed, ask now about the days that are past, [those days] which were before you, since the day that God created man on the earth, and ask from one end of the heavens to the other. Has anything been done like this great thing, or has anything been heard like it?

33Did [any] people ever hear the voice of God speaking out of the midst of the fire, as you heard, and [still] live?