Genesis 6:3
1 When humankind began to multiply on the face of the earth, and daughters were born to them, 2 the sons of God saw that the daughters of humankind were beautiful. Thus they took wives for themselves from any they chose. 3 So the Lord said, “My Spirit will not remain in humankind indefinitely, since they are mortal. They will remain for 120 more years.” 4 The Nephilim were on the earth in those days (and also after this) when the sons of God would sleep with the daughters of humankind, who gave birth to their children. They were the mighty heroes of old, the famous men.
Deuteronomy 34:7
5 So Moses, the servant of the Lord, died there in the land of Moab as the Lord had said. 6 He buried him in the valley in the land of Moab near Beth Peor, but no one knows his exact burial place to this very day. 7 Moses was 120 years old when he died, but his eye was not dull nor had his vitality departed. 8 The Israelites mourned for Moses in the rift valley plains of Moab for thirty days; then the days of mourning for Moses ended.
Notes and References
"... Genesis 6:3 ... YHWH sets the maximum age of humans at 120 here in J; but many persons live longer than this (9:29; 11:10-26, 32 - which come from a separate source, the Book of Records). In J, no one lives longer than 120 years, and it culminates with the report that Moses lives to the maximum of 120 (Deuteronomy 34:7) ..."
Friedman, Richard Elliott The Bible with Sources Revealed: A New View Into the Five Books of Moses (p. 42) Harper San Francisco, 2005