Luke 19 is a part of a book called the Bible. It talks about a man called Jesus and some things he did when he was on Earth a long time ago. In this chapter, Jesus goes to a town called Jericho and meets a man named Zacchaeus who was a tax collector. Zacchaeus wasn't very popular with the people because he took money from them.
But Jesus saw Zacchaeus up in a tree and told him to come down. Jesus then went to Zacchaeus' house and ate food with him. This made people upset because they didn't like Zacchaeus, but Jesus showed love and kindness to him.
After that, Jesus told a story about a king who gave money to his servants and expected them to use it wisely. One servant did a good job, but another hid the money and didn't do anything useful. Jesus was trying to teach that it's important to use the things we have wisely and not waste them.
Finally, Jesus entered Jerusalem and people cheered for him because they thought he was going to be a king who would save them. This event is celebrated today as Palm Sunday in the Christian religion.