Musar sobre II Reyes 9:38

(Bereshith 42:9): "And Joseph remembered the dreams … and he said to them: 'You are spies, etc.'" In all of this his intent was to secure atonement for their sins," as it was [his intent] in (Ibid. 25): "And Joseph commanded that their vessels be filled with grain, that their money be returned, each to his sack, etc." And, in truth, the money caused them much grief in the beginning of their [return journey], when (Ibid. 27): "the one [Levi (according to Rashi)] opened his sack (28) … and their hearts went out, and each trembled to his brother, saying: 'What is this that G-d has done to us?'" And also at the end, when they came to their father (Ibid. 35): "And, as they emptied their sacks, behold, each (found) his money bundle in his sack, and they saw their money bundles, they and their father, and they were afraid." And also (Ibid. 43:18): "And the men were afraid, for they were brought into the house of Joseph … and they said: 'It is because of the money which was returned to our sacks, etc.'" They suffered greatly because of the money; this, to atone for them because of the money they had taken for him [in selling him as a slave].