1)
Why does it say "Yakov"?
1.
Rashi: This is what your father (Yitzchak) called you.
2.
Malbim: You yourself should be called Yakov, for you are at a low level.
2)
What is the meaning of "Yisrael Mekora'i"?
1.
Rashi: I called him (Yakov) Yisrael. Radak - and you are called Yisrael, on his name.
2.
Rashi citing Targum Yonasan: Yisrael who is designated for Me.
3.
Malbim: You are called Yisrael, for I chose you.
3)
Why does it say "Ani Hu Ani Rishon Af Ani Acharon"?
1.
Radak: I am in the present, in the past, and in the future.
2.
Malbim: The miracles that I did for you in Ge'ulas Bavel, I did because I am first and last. It is like I did in Ge'ulas Egypt