Capo 4 but I'm not quite sure, trying to work it out from "The Rock Cries out" Album 
which is live so is hard to tell.

C      F             C
I will call upon the Lord
C      F            C
who is worthy to be praised
C        F     C
so shall I be saved from my enemies
C      F             C
I will call upon the Lord
C      F            C
who is worthy to be praised
C        F     C            F
so shall I be saved from my enemies


C                   F              C
the Lord liveth and blessed be the Rock
C           F         C            G
and let the God of my salvation be exalted
C                   F              C
the Lord liveth and blessed be the Rock
C           F         C            G    C      C   F
and let the God of my salvation be exalted








C      F             C
I will call upon the Lord
C      F            C
who is worthy to be praised
C        F     C            F
so shall I be saved from my enemies



C                   F              C
the Lord liveth and blessed be the Rock
C           F         C            G
and let the God of my salvation be exalted
C                   F              C
the Lord liveth and blessed be the Rock
C           F         C            G    C      C   F
and let the God of my salvation be exalted


C      F             C
I will call upon the Lord
                    (I will call upon the Lord)
C      F            C
Who is worthy to be praised
                   (Who is worthy to be praised)
C        F    C
So shall I be saved from my enemies
             (So   shall    I    be   saved  from my enemies



C      F             C
I will call upon the Lord
                    (I will call upon the Lord)
C      F            C
Who is worthy to be praised
                   (Who is worthy to be praised)
C        F    C                                      F
So shall I be saved from my enemies
             (So   shall    I    be   saved  from my enemies

C                   F              C
the Lord liveth and blessed be the Rock
C           F         C            G
and let the God of my salvation be exalted
C                   F              C
the Lord liveth and blessed be the Rock
C           F         C            G    C      C   F
and let the God of my salvation be exalted