When the unclean spirit has gone out of a person, it roams through waterless places in search [of a place] of rest (release, refreshment, ease); and finding none it says, I will go back to my house from which I came. And when it arrives, it finds [the place] swept and put in order and furnished and decorated. And it goes and brings other spirits, seven [of them], more evil than itself, and they enter in, settle down, and dwell there; and the last state of that person is worse than the first.—Luke 11:24-26
This word from Jesus can be frightening. His purpose for the warning is not to cause us to cringe and worry about unclean spirits coming back. It’s a warning to tell us that it’s not enough to get rid of wrong thoughts—we must keep the door locked so our enemy can’t return. Not only does evil come back, but it comes back worse than before.
I once read an article about diets, and the author said that most people who diet actually lose weight—until they stop dieting. Then they regain the weight they lost and about 5 percent more. When they stop working at the problem, they not only stop losing, but they’re worse than before they started. The author went on to say that the only way to win the battle of being overweight is to make a lifestyle change—by becoming aware of the danger areas and guarding ourselves against making wrong choices.
It works that way spiritually, as well. One way to keep wrong thoughts out of your mind is to keep the mind active and alert and full of right things. You can cast out the devil, but then you must remain alert, always aware of his tricks.
Read the complete devotional here: Overcoming Passivity