God Forgets the Golden Calf but Never Forgets Sinai

Pesikta DeRav Kahana 17:7

"Can a woman forget her suckling child?" (Isaiah 49:15). Iko said: "Can a woman forget her suckling child"—have You forgotten those offerings we used to bring before You? Rabbi Huna in the name of Rabbi Aha said: The Holy One, blessed be He, said: The evil deeds I forget, but the good deeds I do not forget. The evil deeds I forget—what you said concerning the calf, "These are your gods, O Israel" (Exodus 32:4). And the good deeds I do not forget—what you said to Me at Sinai, "All that the LORD has spoken we will do and obey" (Exodus 24:7).

Themes