1 Corinthians 10:13:

There hath no temptation taken you but such as is common to man: but God is faithful, who will not suffer you to be tempted above that ye are able; but will with the temptation also make a way to escape, that ye may be able to bear it.

See also:

Do It Anyway
Casting Out the Spirit of Stupidity
Paper Roadblocks to Healing
Can I Command the Devil to Take His Hands off Someone Else?
Can I Get Healed of Alcoholism, Drug Abuse, Pornography and Homosexuality?
Objection: Just as We Will Never Have Victory over Sin in This Life, We Will Never Have Victory over Sickness