“Because ye trespassed against me among the children of Israel, at the waters of Meribah Kadesh, in the wildernesse of Zin: because yee sanctified mee not in the midst of the children of Israel.”
1611 King James Version (KJV)
32:51 Because ye trespassed - God reminds him of the sin he had committed long before. It is good for the holiest of men to die repenting, even of their early sins.