The Chariot shows a situation of movement and change. It represents an opportunity to make new changes in your family. It may indicate that something concrete can be done to fix the problem. It might be suggested that we spend more time together as a family and create a deeper bond between family members. You might also consider organizing times where everyone can relax and have fun together, such as outings or trips. By doing this, you may begin to build a sense of unity that could help ease tension between siblings.

Knight of Pentacles indicates that some things are out of your control. It might be helpful to remember that jealousy is a very complex feeling, and it's hard to regulate. It takes time and constant work to deal with and overcome it. So, you should be prepared to accept that you won't be able to change your family's emotions in an instant and that it will take effort to achieve your goals.

The Five of Swords can indicate that there may be some information or people involved in the situation that you don't know yet. There may be hidden factors that can influence the jealousy between your siblings that need to be discovered before you can fix the problem. It may be necessary to talk to them and find out what the main reason for the jealousy is in order to deal with it in the right way.

Ultimately, these three cards show that you have an opportunity to make positive changes within your family and in the relationships between your siblings. However, thorough research must be done into the origin of jealousy so that it can be dealt with in the correct way. You'll also need to remember that some things are out of your control and it's important to be patient during the process. To solve the problem, I recommend spending time together as a family, talking to your siblings and discovering the roots of jealousy and then dealing with it in the most appropriate way possible.