What is Johnson C. Smith University's school song and motto?

Answer 1

If you mean JCSU in Charlotte, NC:

Motto: Sit Lux (Let There Be Light)

Song: "Alma Mater" was adopted as the JCSU loyalty song in 1924. The lyrics are under copyright, so I won't post them here. But here's a link to the song in the JCSU archives:
http://archives.jcsu.edu/echo/Alma_mater.htm