From their third album, In Utero.

She keeps me close when I am weak
She has the softest voice when she speaks
I've been drawn into your kindness
You're the only one I trust when I rest

Hey! Wait! I've got a new complaint!
Forever in debt to you eternal kindness
Hey! Wait! I've got a new complaint!
Forever in debt you your eternal kindness

Tame fierce creatures like no pony can
The fairest of all ponies in the land
Friend of Dashie longer than I care to recall
I want you there when I happen to fall

Hey! Wait! I've got a new complaint!
Forever in debt to you eternal kindness
Hey! Wait! I've got a new complaint!
Forever in debt you your eternal kindness

She keeps me close when I am week
She has the softest voice when she speaks
I've been drawn into your kindness
You're the only one I trust when I rest

Hey! Wait! I've got a new complaint!
Forever in debt to you eternal kindness
Hey! Wait! I've got a new complaint!
Forever in debt you your eternal kindness

Hey! Wait! I've got a new complaint!
Forever in debt to you eternal kindness
You're too kind... you're too kind... you're too kind

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https://www.youtube.com/watch?v=aTz85xBAliE