a song

The blood that Jesus shed for me
Way back on Calvary,
The blood that gives me strength from day to day,
It will never lose its power.

For it reaches to the highest mountain,
And it flows to the lowest valley.
The blood that gives me strength from day to day,
It will never lose its power.

It soothes my doubts, and it calms my fears;
And it dries all my tears.
The blood that gives me strength from day to day,
It will never lose its power.

For it reaches to the highest mountain,
And it flows to the lowest valley.
The blood that gives me strength from day to day,
It will never lose its power.

I can't play it on the piano without hurting. I could have a few weeks ago. I think I only have a spark of comprehension of what this song could mean for me.