"When Isaac reached the age of one hundred and twenty three, and was thus approaching the years attained by his mother, he began to meditate upon his end. It is proper that a man should prepare for death when he comes close to the age at which either of his parents passed out of life. Isaac reflected that he did not know whether the age allotted to him was his mother's or his father's, and he therefore resolved to bestow his blessing upon his older son, Esau, before death should overtake him."