Rashi on Deuteronomy 4:45/רש"י על דברים ד׳:מ״ה

1אלה העדות … אשר דבר THESE ARE THE TESTIMONIES … WHICH [MOSES] SPAKE — Those are the very same testimonies which he spoke when they came forth from Egypt; and he again repeated it (this law) to them in the plains of Moab.