Musar su Genesi 50:17

אנא שא נא פשע עבדי אלהי אביך . We learn from here to what extent a person has to be prepared to forgive evils committed against him by his fellow human beings (when the latter repent and ask for forgiveness). On the other hand we observe that if such giants of our history as the founders of the twelve tribes, who themselves were comparable to angels, prostrated themselves in front of a human king, Joseph, and offered themselves as slaves to him, to what length does an ordinary individual who has slandered someone have to go so as to gain the favor of the person whom he has wronged. Even when he has obtained the forgiveness of his victim, this does not yet mean that G–d has forgiven him. G–d kept the brothers' "file" until the time when Hadrianus executed the Ten Martyrs who represented the brothers who had wronged Joseph. We have an allusion to this in 50,21 where Joseph tells the brothers: ועתה אל תיראו, "For now, fear not." Joseph hinted that there would come a time when they (or their descendants) would have reason to be afraid on that score. Although Joseph foresaw such a development in his Holy Spirit, for the time being the comfort he offered his brothers was very real.