Galatians 5:24:

And they that are Christ’s have crucified the flesh with the affections and lusts.

See also:

Who You Are and What You Have
Dealing with Fear
The Insecure Preacher
Can I Get Healed of Alcoholism, Drug Abuse, Pornography and Homosexuality?
Objection: Bodily Suffering Helps You Avoid Sin (1 Peter 4:1)
Objection: God Sometimes Heals You Only After He Has Let You Suffer a While (1 Peter 5:10)
Mistake: Carnality