1)
What is "b'Vo'ah"?
1.
Radak: It is Makor (like the infinitive) b'Vo (when your legs come), with a superfluous Hei at the end.
2)
Why will the child die now?
1.
Malbim: It is so he will be eulogized and buried. Afterwards, these will not be done [for the dead of Beis Yaravam].
