For the grace of God has appeared, bringing salvation for all people, training us to renounce ungodliness and worldly passions, and to live self-controlled, upright, and godly lives in the present age, waiting for our blessed hope, the appearing of the glory of our great God and Savior Jesus Christ, who gave himself for us to redeem us from all lawlessness and to purify for himself a people for his own possession who are zealous for good works.
- Titus 2:11-14
From this passage, Gordon (and his friend, Mike) links grace with our struggle against lust.
[Update: added the link to Gordon's post. I forgot about that before.]