C. F. Keil and Franz Delitzsch on Genesis 43:30-31

Gen 43:30-31

And “his (Joseph’s) bowels did yearn” (נכמרוּ lit., were compressed, from the force of love to his brother), so that he was obliged to seek (a place) as quickly as possible to weep, and went into the chamber, that he might give vent to his feelings in tears; after which, he washed his face and came out again, and, putting constraint upon himself, ordered the dinner to be brought in.