Sworn Statements

A woman was deathly ill, and her family was gathered around her. She wanted to ensure there would be no lingering or bitter disputes regarding the inheritance she was leaving to them, so she pleaded with her children to agree to adjudicate with her relative any disputes that might arise. All the family members agreed to a binding commitment to accede to her request.
After her passing, sure enough, a dispute erupted regarding the inheritance. All the relatives remembered their deal and prepared to ask the designated relative to arbitrate the dispute. However, one of the sons stated that he refused to abide by the agreement. He had only agreed to the request to put his mother at ease. The designated relative is not knowledgeable in Torah law or, l’havdil, in civil law, so the son said that the dispute must be heard by beis din.
Can the relatives force the son to keep his word? This incident and question can be found in the Chashukei Chemed, Bava Basra 147b.
The Gemara in Bava Basra says that certain institutions were enacted to ease the mind of someone who is deathly ill. It is apparent that Chazal valued every second of life and didn’t want the sick individual’s passing to be hastened by worry (according to Rashbam’s final explanation). An individual may use this as an excuse to lie to the patient.