Must I divorce my wife because she refuses the return of my elderly and sick mother for me to care for her, especially since my mother prefers my care despite the presence of my married brother?

The wife has the right to a separate dwelling from the husband's mother. Obedience to the mother, honoring her, and caring for her are among the most emphasized duties. The husband is not obliged to divorce his wife out of obedience to his mother. You must strive to reconcile the wife's right to a separate dwelling with honoring and caring for the mother. If reconciliation is not possible, then compare the harms resulting from the wife's remaining or her divorce, and choose the lesser of the two harms. Serving the mother is an obligation upon her children.