1)
What is "v'Asisa Chesed Al Avdecha"?
1.
Rashi: Send me away (if your father wants to kill me).
2.
Targum Yonasan: "Al Avdecha" is like Im Avdecha. Radak - also "va'Yavo'u ha'Anashim Al ha'Nashim" (Shemos 35:22, is like Im ha'Nashim; "Nachah Aram Al Efrayim" (Yeshayah 7:2) is like Im Efrayim.
3.
Malbim: This is one of three reasons - to do Chesed, due to our Bris, and because I did not sin. If I have sin, kill me!