throughout the scriptures. One example is Alma seeing the sons of Mosiah and rejoicing that they were still his “brothers in Christ”.
I ran into a cousin recently that I hadn’t seen in over a decade. It was so nice to hear how his family was doing and to hear his kids had recently been baptized. Again, I rejoice when others follow Christ because I know how much it has changed my life. So yeah when someone I admire is still faithful it makes me happy.