Answer:
The Hebrews where at first very happy when Moses led them out of Egypt, but as they walked farther and farther they started complaining about how hard it is and how they barely have any food to eat and that they were better off in Egypt, but as Moses (with the help of God) performed miracles with giving them food and water the Hebrews were delighted, but every time they got tired of eating the same food they started complaining again and again.