ספר שמות

The Midrash (Shemos Rabbah 48:6) explains that through the donations to the Mishkan, Bnei Yisrael repaired the sin of the Golden Calf. The reason is that through their generosity, they reconnected with their true good core, as Bnei Yisrael are called “the daughter of nobles”. This generosity is inherent in their essence and inherited from their forefathers.In contrast, the nations of the world, even if they give all the wealth of their house, do not do so with true generosity. Their kindness is often self-serving, as indicated by the phrase “The kindness of the nations is a sin”. Their actions are not for the sake of Hashem. Only Bnei Yisrael are called generous at the core of their souls, as their generosity is genuine and rooted in their essence.