May a person make a vow and deliberately not fulfill it in the hope that a wicked spouse will die?

This source-based Torah study examines the question: May a person make a vow and deliberately not fulfill it in the hope that a wicked spouse will die? It follows the canonical Hebrew discussion through the weekly Torah portion and the Jewish sources cited there. This localized discovery layer is a concise abstract, not a full translation and not a practical ruling. Any halakhic, medical, legal, security, bereavement, political or other sensitive claim remains subject to the canonical review status and should not be treated as individualized advice.