Tafsiran yang Mengutip untuk Yesaya 10:19

It is possible to explain the words יחי ראובן ואל ימות as applying to this tribe’s success in war, i.e. that they should not only be successful but also not incur any casualties. The words ויהי מתיו מספר would be an allusion to the distant future when the Romans would condemn 10 sages to death by torture for their forefathers having sold Joseph to the Ishmaelites at the time. Moses hinted that at that time his blessing would not be effective, and members of that tribe would be included in that decree (though Reuven their ancestor had actually saved Joseph from death). We find that the word מספר has a mystical dimension; Isaiah 10,19 speaks of so few trees of a forest remaining that even a young child can record its מספר, “its number.” Rashi quotes Sanhedrin 95, according to which the prophet refers to the letter י meaning “ten” as being so small that even a very young child can write it. Moses would then hint that whereas Reuven’s conduct vis-a-vis Bilhah had been forgiven to the extent that none of his descendants would die prematurely on that account, the pardon was not so absolute, and that is why at the time the Romans decreed the death of the ten sages the number was 10 instead of 9, seeing that neither he nor Binyamin had had a share in it.