1)
About what should they be diligent?
1.
Ibn Ezra: The silver and gold; the verse omits them.
2)
What does the verse teach about "ha'Lishchos Beis Hashem"?
1.
Rashi: It is in order to put them in ha'Lishchos Beis Hashem.
2.
Ibn Ezra: It refers to the officers of ha'Lishchos Beis Hashem. The prefix Hei is extra, for Lishchos is Samuch to Beis Hashem.
