1)
Why does it say "ka'Es Chayah" with a Kamatz under the Kaf?
1.
Rashi: It was like then (when he promised her), when she was alive and b'Shalom.
2)
Why does it say "Asher Diber Eleha Elisha"?
1.
Malbim: This shows that it was not due to Tefilah, rather, through Elisha's decree; a Tzadik decrees and Hashem fulfills (refer to 4:16:2:2).