What do we learn from "Kol Arum Ya'aseh v'Da'as"?
Rashi, from Megilah 12b: This refers to David. He sought "a virgin Na'arah" (only one; therefore everyone eagerly brought his daughter, hoping that she will be picked).
Midrash Mishlei: This is one who does not get haughty about his Torah.
Pesikta Zutresa (Bereishis 32:17): This refers to Yakov, who spaced out his gift to Esav, to satiate the Rasha's eye.
R. Yonah: An Arum hides secrets even at the time of deed 1 (and all the more so at the time of intent - refer to 13:16:2:3).
Malbim: I explained above "Arum Koseh Da'as" (12:23) that the Arum hides his knowledge from everyone. He does not do anything with doubt, until he knows that it is proper and directs towards the goal. Armah does not go in darkness and doubts - "Chachmas Arum Havin Darko" (14:8).
One might have thought that once the deed is done, there is no need to guard the secret. (PF)
What do we learn from "u'Chsil Yifros Iveles"?
Rashi, from Megilah 12b: This refers to Achashverosh. "The king appointed overseers" (he will gather many girls and have relations with all of them, but only one will become queen), so people hid their daughters.
Nedarim 22b: Anger makes one forget his learning and increase foolishness -"Ki Ka'as b'Cheik Kesilim Yanu'ach" (Koheles 7:9), "u'Chsil Yifros Iveles."
R. Yonah: A Kesil informs secrets [at the time of deed, and even earlier, at the time of intent - "Arum Koseh Da'as v'Lev Kesilim Yikra Iveles" 12:23].
Malbim: Kesil is one who is estranged from the laws of Chachmah due to his desire. Even though he understands the laws of Chachmah, he puts doubts in them in order to [justify] doing his desire. "V'Lev Kesilim Yikra Iveles" (12:23) - not only one day he not cover his folly, he calls and publicizes it! "Yifros" is like "u'Farsu ha'Simlah" (Devarim 22:17), to clarify all sides of the Safek. The Kesil acts in darkness due to folly spread on Kisluso (his flanks).
