Here are my chords, based on a couple of similar recordings that I like(Harry Belafonte and Charlie Rich)they do it in F, which is a bad key for banjo--

||GG/C D7/GG/GG/
GG/GG/A7A7/D7 D7/
G G/B7 B7/Em Em/C C/
Am Am/(the extra measure echoes the word "tremble")
G E7/A7 D7/G C-Cm/C D7||

These recordings have a gospel/ rock feel to them, and the chord changes reflect that--I also have heard a very nice Johnny Cash/June Carter rendition that uses simpler changes--three chords in the key of D, and almost the same as you'd play "Careless Love"--that probably is the way you'd want to do it--