Ta-Ha - 20:86 "Moses returned to his people, angry and disappointed, and said, "My people, did not your Lord give you a good promise? Could you not wait? Or did you break your covenant with me in order to incur the wrath of your Lord?"
Our Lord's promise to the Children of Israel:
The Table Spread/5:12 "Allah had taken a promise from the Children of Israel and We sent twelve leaders from among them. Allah said: "I am with you if you observe the prayer, pay the zakat, believe in My messengers and respect them, and lend to Allah a good debt. I will cover your sins and give you gardens in which rivers flow. So whoever of you disbelieves after that has gone astray from the right path."