By the end of Exodus, we know that the rest that God promised to everyone in the tribe who was faithful - reaching the Promised Land of Canaan - would be denied to Moses. We are given the reason God denied Moses' entry and we have it confirmed again at Deuteronomy 34:4-6.

Moses' mortal life ended and he was buried at a location unknown to man.

Yet, at Matthew 17:3, we are presented with the disciple's witnessing of Jesus with Moses and Elias. What can a dead man do to redeem himself?

The mercy, foregiveness and redemption received by Moses, after his burial, was from God.