I had to put it in the key of E so I could sing it. 
But you can transpose it as needed.
The song is pretty simple but you have to get
into the hypnotic rhythm of the song first. Enjoy! 

   E
O, for a thousand tongues to sing
                     B
My great Redeemer’s praise
     C#m          A
The glories of my God and King
    B               E
The triumphs of His grace

    E
My gracious Master and my God
                B
Assist me to proclaim
    C#m                   A
To spread through all the earth abroad
    B             E
The honors of Thy name

        A           E
So come on and sing out
        F#m7        E
Let our anthem grow loud
         A   E     F#m7
There is one great love  
         A   E     F#m7   E
There is one great love Jesus

   E
Jesus, the name that charms our fears
                      B
That bids our sorrows cease
     C#m          A
‘Tis music in the sinner’s ears
     B                   E
‘Tis life and health and peace

   E
He breaks the power of canceled sin
                      B
He sets the prisoners free
    C#m                A
His blood can make the foulest clean
    B                 E
His blood availed for me


        A           E
So come on and sing out
        F#m7        E
Let our anthem grow loud
         A   E     F#m7
There is one great love
       A   E     F#m7
There is one great love
         A   E     F#m7   E
There is one great love Jesus, Jesus


   E
He speaks and listening to His voice
                    B
New life the dead receive
    C#m             A
The mournful broken hearts rejoice
    B              E
The humble poor believe

   E 
Glory to God and praise and love
              B
Be ever, ever giv’n
   C#m              A
By saints below and saints above
    B                   E
The church in earth and Heav’n


        A           E
So come on and sing out
        F#m7        E
Let our anthem grow loud
         A   E     F#m7
There is one great love
       A   E     F#m7
There is one great love
         A   E     F#m7   E
There is one great love Jesus


E
There are so few words
     E
That never grow old
E
There are so few words
     E
That never grow old
E      E      E      E
Jesus, Jesus, Jesus, Jesus!


        A           E
So come on and sing out
        F#m7        E
Let our anthem grow loud
         A   E     F#m7
There is one great love
       A   E     F#m7
There is one great love

        A     E
So come on----
        A     E
So come on----

        A           E
So come on and sing out
        F#m7        E
Let our anthem grow loud
         A   E     F#m7
There is one great love
       A   E     F#m7
There is one great love
         A   E     F#m7   E      E      E
There is one great love Jesus, Jesus