"Leave your bad limbs behind
For they are conduits to the heart"
Is referring to Matthew 5:29
"If your right eye causes you to sin, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell"
I think the last verse
"Leave your bad limbs behind For they are conduits to the heart"
Is referring to Matthew 5:29
"If your right eye causes you to sin, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell"
Which is also mentioned at the start of "New Sun"