I have been reading a little devotional called "It is Finished:365 Days of Good News" by Tullian Tchividjian.
"How does change actually happen?
When it comes to real heart change, we have two options: law or grace.
At the end of the day, we either believe law changes or love does ...
Paul makes it clear in Romans 7 that the law endorses the need for change
but is powerless to enact change - that's not part of its job description.
The law points to righteousness but can't produce it.
It shows us what godliness is but cannot make us godly.
The law can inform us of our sin but cannot transform the sinner.
The law can instruct, but only grace can inspire.
To put it another way, love inspires what the law demands.
... a person loved in weakness blossoms."
I will always be tempted to try to change by applying the law to myself.
Instead, what I need, what you need, what we all need, is a huge, daily dose of grace.
Tchividjian dishes it up, one day at a time.