The meor vashemesh uses the struggle with the expression in Deut 5:19 "Hashem spoke those words—those and no more—to your whole congregation at the mountain, with a mighty voice out of the fire and the dense clouds. [God] inscribed them on two tablets of stone and gave them to me." the hebrew יָסָ֑ף is targum called וְלָא פְסַק
So which is it? only once but never again or never stopped? the master informs us as to the two types of individual "hasagah" of the Divine.