Now, then, if holiness thou wouldst obtain,
And wouldst a tender Christian man remain,

Keep faith in action, let that righteousness
That Christ fulfilled always have express

And clear distinction in thy heart, from all
That men by Scripture, or besides, it, call

Inherent gospel holiness, or what
Terms else they please to give it; for 'tis that,

And that alone, by which all graces come
Into the heart; for else there is no room

For ought but pride, presumption, or despair,
No love or other graces can be there.

Received you the Spirit, saith St. Paul,
By hearing, faith, or works? not works, and shall

No ways retain the same, except you do
Hear faith, embrace the same, and stick thereto.

John Bunyan

http://www.poemhunter.com/poem/of-holiness-of-life/