2.23 And if you are in doubt as to that which We have sent down (nazzalna) to Our servant, then produce a chapter like it and call on your witnesses besides Allah if you are truthful.
2.57 And We made the clouds to give shade over you and We sent to you (wanzalna) manna and quails: Eat of the good things that We have given you; and they did not do Us any harm, but they made their own souls suffer the loss.
2.61 And when you said: O Musa! we cannot bear with one food, therefore pray Lord on our behalf to bring forth for us out of what the earth grows, of its herbs and its cucumbers and its garlic and its lentils and its onions. He said: Will you exchange that which is better for that which is worse? Enter a city, so you will have what you ask for....
In 2.61 we notice the Israelites asking for "out of what the earth grows".
2.57 - Manna and Quail were SENT DOWN, just like revelations, explained in the two preceding ayats.
Instead of Revelation from Allah, people want the earths produce.
77.50 In what HADITH, then, AFTER (BaAadhu) it, will they believe?