Lyric discussion by jmharkey 

Cover art for The River lyrics by Manchester Orchestra

I'm pretty sure the words in the middle come from an old hymn/song called "Come Thou Fount". The words being "oh to grace how great a debtor, daily I'm constrained to be, let thy goodness like a fetter, bind my wandering heart to thee."

So I'm pretty sure it's...

"Grace taught a debtor Daily I'm strained to be God how I feel it, fetter pride to your feet."