Let's not use the Front Page settings. We'll get the home page to show just a single, full article:
1. Navigate to Menus | Main Menu. As you can see, there's a star in the Default column next to the Home link. This indicates that the visitor will see this page in the mainbody when accessing your site.
2. To change the Default page, select the checkbox next to another Menu Item. In this case, select the Mission Statement menu item and click on the Default button in the toolbar. It's the button with the big yellow star.
3. Click on Preview. The results are shown in the following screenshot; an ordinary article has become the Default page:
If you want to update the Main Menu to reflect these changes, you can hide the old Home link (click on the Unpublish icon next to the Home link) and rename the existing Mission Statement link to Home.