Why is it written ha'Memusim, and we pronounce it ha'Mumasim?
Radak: Both of these mean the same, just the Kesiv is an adjective, like "Memusei Sachalu'im" (Yirmeyah 16:4), and it is pronounced like a Hifil verb.
Why was she able to save Yo'ash?
Malbim: 'Rashi' (Divrei ha'Yamim II, 22:10) explained that Asalyah killed them via poison; Yo'ash was nursing. She wanted to give poison to Yo'ash's wet-nurse, to ruin the milk.
What is "Chadar ha'Mitos"?
Rashi: It is the room above Kodesh ha'Kodoshim, like it says "va'Yhi Itah Beis Hashem" (verse 3). David said about him "Yitzpeneni b'Suko
Did she 'steal' him in Chadar ha'Mitos?!
Radak, based on Targum Yonasan: The verse is abbreviated; it means that she 'stole' him among those killed, and hid him and his wet-nurse in Chadar ha'Mitos.
Malbim: Yes! Refer to 11:2:3:5.
Why does it say "va'Tignov (singular)
Radak: Initially, [Yehosheva] hid him. Afterwards, also all who knew concealed the matter, and did not reveal to Asalyah all six years.
