On the recording that I have (Vo 05588 - Chicago 1940, reissued Catfish KATCD-106), I reckon he is singing the stanza in question as follows:

Just as sure as we live, it is sure we's born to die
Sure we's born to die
Just as sure as we live, sure we's born to die
I know I was born to die but I hate to leave my children cryin'

--Stewie.