Mephibosheth, Saul’s grandson, [110] came down to meet King David. From the time the king had left Jerusalem until he came back in peace, Mephibosheth had not cared for his feet, trimmed his mustache, or washed his clothes.
People always use the name of someone greater than themselves to make a vow (promise). The vow proves that what they say is true. And this ends all arguing about what they say.