1)
What is the difference between Chachmah and Tevunah?
1.
Malbim: Chachmah includes all Chachmah of Midos and all matters to which good and bad apply. Tevunah includes all investigation to which true and false apply.
2)
What is "Rochav Lev"?
1.
Malbim: It is knowing all details of Chachmos and natures and their varieties, to which there is no end.
3)
What is the meaning of "ka'Chol Asher Al Sefas ha'Yam"?
1.
Radak: It is not a measure, rather, [without] number, like it says "v'Hayah Mispar Bnei Yisrael [k'Chol ha'Yam]" (Hoshe'a 2:1).
2.
Radak #2 citing Bamidbar Rabah 19:3: Just like sand is a fence for the sea, so Chachmah was a fence for Shlomo.
