This classic Gospel number is many people's favorite tune and works great on banjo. It's a nice slow waltz tune. Start out with the Backup to get a feel for the timing. Then check out the Scruggs Style arrangement in G. After nailing that down you might wanna check out the Scruggs Style tune in the key of C. Learning the same tune in two different keys is great for your understanding of the fretboard layout on banjo.
If you are up for a challenge, checkout the Melodic Style arrangement. It sounds good when playing with a band or solo. With all the tunes, make sure to check out some licks to explore the other ways of interpreting the tune.