"a people ignorant": of the past; "and not wise": to (foresee) the future. Similarly, (Isaiah 1:3) "Israel did not know; My people did not understand": "Israel did not know": of the past; "My people did not understand": to (foresee) the future. Variantly: "a people ignorant and not wise": What caused Israel to be ignorant and foolish? Their not reflecting upon words of Torah. And thus is it written (Iyyov 4:21) "Has not their preeminence fled? They will die for lack of wisdom."
"Is He not your Father, your Owner?" R. Shimon b. Chalafta says: If the weaker (i.e., you) were above and the stronger below, could you defeat him? How much more so that the Stronger is above and the weaker below. And thus is it written (Koheleth 5:1) "Be not rash with your mouth, and let your heart not hasten to utter a thing before G-d. For G-d is in the heavens and you are on earth, etc."