Commentaire sur L’Exode 11:2

דבר נא SPEAK נא — The word נא is always an expression of entreaty. Here it means: I entreat you, admonish them about this which follows (impress this injunction upon them), so that righteous man, Abraham, may not say: the prophecy (Genesis 15:13) “they shall serve them, and they shall afflict them” He permitted to be fulfilled in them, but the promise (Genesis 15:14) “and afterwards they shall go forth with great substance” He did not bring to fulfilment for them (Berakhot 9a-b).

דבר נא באזני העם וישאלו, they needed to be encouraged to ask for this as they might have worried about the Egyptians pursuing them in order to retrieve their riches. It worked in reverse; the very fact that the Egyptians chased after the Israelites, i.e. reneged, was the immediate reason G’d came to the Israelites’ assistance and drowned their pursuers. That is what made them absolutely free.

וישאלו, to be an outright gift, just as in Psalms 2,8 שאל ממני ואתנה נחלתך, “ask of Me, and I will give your inheritance.”