I keep a close watch on this heart of mine 
I keep my eyes wide open all the time
I keep the ends out for the tie that binds 
because you're mine I walk the line

I find it very very easy to be true 
I find myself alone when each day is through
Yes I'll admit that I'm a fool for you 
because you're mine I walk the line

As sure as night is dark and day is light 
I keep you on my mind both day and night
And happiness I've known proves that it's right
Because you're mine I walk the line 
because you're mine I walk the line