Nice choice getting The Chosen app on your Roku device! 

To download The Chosen app on Roku:

1. Go to Roku.
2. From the Home Screen, scroll to Search.
   

3. In the search field, search for The Chosen.
4. Select The Chosen from the search results, then click Add channel.
   

5. When the channel is added, click OK in the Channel added popup. 
    
6. Go back to the Roku Home Screen.

7. To open The Chosen, scroll to the end of your channels, and select The Chosen.
8. Now you can watch The Chosen video content on your Roku device. 

If you encounter any issues, see How do I add channels to my Roku® streaming device? or reach out to Roku Customer Support.