Alright kiddo, let me explain Isaiah 5 to you in a way that you can understand easily.
Isaiah 5 is a chapter from the Bible where the prophet Isaiah is talking to the people of Israel. Isaiah is telling them a story about a man who owned a vineyard.
A vineyard is like a big garden where people grow grapes to make things like wine. The man in the story did everything he could to make sure his vineyard grew great grapes. He put up a fence around it to keep animals out, he cleared the rocks and weeds, and he even built a tower to watch over it.
When the time finally came to harvest the grapes, the man was disappointed because the grapes were not good. They were sour and tasted bad. The man was very upset because he had worked so hard to take care of the vineyard.
Isaiah is using this story to explain to the people of Israel that they are like the bad grapes. The man in the story represents God, and the vineyard represents the people of Israel. God had done everything he could to take care of the people of Israel, but they still didn't listen to him and were bad.
Isaiah is trying to teach the people that they need to change their ways and start doing what is right. If they don't, then bad things will happen to them.
So, the moral of the story is that we need to be good and listen to God if we want to be happy and avoid bad things happening to us.