(Devarim, Ibid.) "and there is no understanding in them" — There is not one among them who reflects and says (viz. Ibid. 30) "Last night one of us pursued a thousand of the nations, and two, ten thousand; and now one of them pursues a thousand of us; and two of them, ten thousand of us! (This could not have happened) if their Rock had not delivered them."
R. Nechemiah — The nations have lost the seven mitzvoth that I gave them.
"and there is no understanding in them": There is not one among them who reflects and says "Now one of us pursues a thousand; and two, ten thousand. But in the days of the Messiah, one of Israel will pursue a thousand of us; and two, ten thousand." (This could not have happened) "if their Rock had not delivered them." And it once happened with the (Roman) army in Yehudah that a decurio (a commander of ten horsemen) rode after a Jew to kill him, but could not catch up with him — whereupon a serpent wound itself around his (the Jew's) ankle, (but did him no harm) — at which he (the Jew) said to a bystander: Tell that man one thing: Do not say to yourself "We are strong and they are weak." (But say to yourself: This [our subjugation of the Jews] could not have happened) "if their Rock had not sold them, and the L-rd had not delivered them" (into our hands).