Jérémie 5:7 Midrash : Aggadat Bereshit

[2] Another interpretation: "And Zion said, 'The Lord has forsaken me, and the Lord has forgotten me.'" (Isaiah 49:15) This refers to the sin of the golden calf, which caused the Shechinah to depart from the Israelites. Therefore, Zion says, "The Lord has forsaken me." However, God responds, "If I forget you, O Jerusalem, may my right hand forget its skill" (Psalms 137:5). In other words, God did not forget the Israelites, but rather, they forgot Him. This is why He says, "If I forget you," indicating that it was the Israelites who forgot Him. Another interpretation: also suggests that "Zion" refers to the Torah, which the Israelites neglected and abandoned. This is why it says, "The Lord has forsaken me," as if the Torah itself is speaking. God responds, "If I forget you," meaning that He did not forget the Torah, but rather, the Israelites forgot it. The Targum translates this passage as, "And Zion said, 'I have sinned, and my children have abandoned me.'" In either case, the message is clear: it was the Israelites who turned away from God, not the other way around. God remains faithful to His covenant and His word, even when His people fail to uphold their end of the bargain.