Deuteronomy 34:6-8

Revised Standard Version

⁶ and he buried him in the valley in the land of Moab opposite Beth-pe′or; but no man knows the place of his burial to this day. ⁷ Moses was a hundred and twenty years old when he died; his eye was not dim, nor his natural force abated. ⁸ And the people of Israel wept for Moses in the plains of Moab thirty days; then the days of weeping and mourning for Moses were ended.