Take also your flocks and your herds, as you said, and begone! And may you bring a blessing upon me also!”
וברכתם גם אתי AND BLESS ME ALSO — Pray on my behalf that I should not die because I am a firstborn (cf. Targum Jonathan on Exodus 12:32 and Mekhilta).
AND BLESS ME ALSO. The purport of it is that “when you will sacrifice to the Eternal your G-d as you have said, and you will pray for yourselves that He should not strike you with pestilence or sword, remember me also in your prayers together with yourselves.”
Now Rashi commented: “Pray on my behalf that I should not die, for I am a firstborn.” The plain meaning thereof is that they should bless him and his kingdom, for included within the blessing to a king is the state of peace of the whole kingdom. And in the Mechilta we read: “And bless me also. Pray on my behalf that the punishment may desist from me,” meaning that he should no longer be punished on their account.
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