Deuteronomy 34:6-8

Young's Literal Translation

⁶ and He burieth him in a valley in the land of Moab, over-against Beth-Peor, and no man hath known his burying place unto this day.

⁷ And Moses [is] a son of a hundred and twenty years when he dieth; his eye hath not become dim, nor hath his moisture fled.

⁸ And the sons of Israel bewail Moses in the plains of Moab thirty days; and the days of weeping [and] mourning for Moses are completed.