I just got that CD and was picking out that song, I hear it a bit different.
The main verses are essentially a capella with a rhythm guitar choking on the chord, which sounds like a standard E:
E
I am not forgotten, I am not forgotten, I am not forgotten
B E
God knows my name
(repeat)
E F F/D (or a Dm, whichever you prefer)
He knows my name (vamps on the E F F/D til back to top)
E
Light over darkness, strength over weakness, joy over sadness, He knows my name
E
Father to the fatherless, friend to the friendless, hope for the hopeless, He knows my name
[walk down to bridge with E Eb D C# C]
Em/C
I will praise You, Lord, I will praise You, Lord
C/A B
I am fearfully and wonderfully made
[That's the fast part of the song. The slow part you mentioned is the following:]
D/B A/F# D/B A/F#
E/C# B/Ab E/C# B/Ab
D/B A/F# D/B A/F#
I am not forgot - ten
E/C# B/Ab E/C# B/Ab
Ne - ver forsa - ken
Hope that helps