This is based on the tab by DaveBuchholz.
While listening to the recording I figured it might sound a little better as a solo
guitar piece if you were able to go to the low E which you can't do when raising it to F.
When not raising E to F you run into difficulties playing the bass line and the two 
ongoing harmony tones because you run out of fingers. So I found an alternative tuning that
works all the way.

--> Lower the B to A#
then keep the middle finger and the pinky on the harmony tones and you'll be fine.

Intro/verse
--3----3--3--3----|
--2----2--2--2----|
--X----X--X--X----|
--X----X--X--X----|
--X----3--0--X----|
--X----X--X--1----|

2nd part of verse/chorse
--3--3--|
--2--2--|
--X--X--|
--0--3--|
--X--X--|
--X--X--|

Chorus
--3--3--3--|
--2--2--2--|
--X--X--X--|
--X--X--X--|
--X--X--X--|
--3--0--1--|

end of Chorus
--3--3--|
--2--2--|
--X--X--|
--0--X--|
--X--X--|
--X--1--|

Mercy lyrics

Don't give up
I know you can see
All the world and the mess that we're making
Can't give up
And hope that God will intercede
Come on back
Imagine that we could get it together
Stand up for what we need to be
Cause crying won't save or feed a hungry child
Can't lay down and hope that miracles change things
So lift up your eyes
Lift up your heart

Singing mercy will we overcome this
Oh one by one could we turn it around
Maybe carry on just a little bit longer
And I'll try to give you what you need

Me and you and you and you
Just want to be free yeah
But you see all the world is just as we've made it
And until we got a new one
I've got to say that love is not a whisper or a weakness

No love is strong
So we got to get together yeah
Gotta get gotta get gotta get
Til there is no reason
To fight

Mercy will we overcome this
Oh one by one could we turn it around
Maybe carry on just a little bit longer
And I'll try to give you what you need

Yeah...
Ah...
Oh...
Yeah...

Mercy will we overcome this
Oh we come to far to turn it around
Oh and asked too much to be a little bit stronger
But I want to give you what you need

Mercy what will become of us
Oh one by one could we turn it around
Maybe carry on just a little bit longer
And I'll try to give you what you need