1)
Does "Ki" give the reason?
1.
Rashi: Yes - He should wait (28), for Hashem will not abandon forever.
2.
Ri Kara: Yes. This is why "it is good to bear a yoke in his youth" (27), and there is nothing better than "Yeshev Badad v'Yidom" for all that Hashem imposes on him, and "Yiten be'Afar Pihu
2)
What is the meaning of "Yiznach"?
1.
Ibn Ezra #1: It is to despise.
2.
Ibn Ezra #2: It is to forget. This is correct, for it says "va'Tiznach mi'Shalom Nafshi" (17).
