I Walk the Line Lyrics

Lyric discussion by Paymaan 

Cover art for I Walk the Line lyrics by Johnny Cash

I don't get "I keep the ends out for the tie that binds" part !!??!!

@Paymaan My guess is that it's a metaphor of a rope. He keeps the "ends" of that rope "out" (available), so that they can be tied into a knot, so that the rope will bind the two of them together.