24"When an evil[a] spirit comes out of a man, it goes through arid places seeking rest and does not find it. Then it says, 'I will return to the house I left.' 25When it arrives, it finds the house swept clean and put in order. 26Then it goes and takes seven other spirits more wicked than itself, and they go in and live there. And the final condition of that man is worse than the first."
Cleansing from sin must be followed by obedience to God's word, not complacency. unclean spirit. A demon. waterless places. For the desert as a place inhabited by demons, cf. Lev. 16:10; Luke 8:29; and note on Matt. 12:43. the house swept and put in order. The demon has been cast out. seven other spirits. A full contingent of demons (cf. Luke 8:2). On the significance of “seven,” see note on Matt. 12:45. --ESV Study Bible
The context for this passage is exorcism. Jesus has just cast out demons from a man. He was accused of being in league with Satan and Jesus uses reason to refute their accusation. Why would Satan send someone to heal what he destroyed? Read 11:14-23.
Jesus then makes the statement that there is no neutrality when it comes to allegiance with God. You are either with Jesus or against Jesus.
Now we come to the focal passage. Again we need to be reminded that the context of these verses is demon exorcism.
It is not enough to put away evil things. It is not enough to be neutral. You have to be filled with something. Apparently nature is not the only thing that abhors a vacuum.
Have you been trying to cleanse yourself of evil things? If so, God bless you. But it is vitally important that you don't leave your house empty as Jesus said. You must fill it with something good.
Talk about Buddhism and its goal of emptying (nirvana).
What does Jesus mean by 'house'? I believe the house Jesus refers to is our inner being, heart, mind. What excites you? What do you think about all the time? Remember last week's passage? For where your treasure is, there your heart will be also. - Luke 12:34
Do you think of Jesus as your treasure? We need to work hard to make Him our treasure as much as we can.
What happens if you don't fill your 'house' with something good? If you leave your house empty of anything, something will fill it. Good or bad. If you don't actively seek to fill it with good things, then bad will come in and even stronger than before.
What can we fill up our 'house' with? Let's look at what Paul said in Phillippians chapter 4:
4Rejoice in the Lord always. I will say it again: Rejoice! 5Let your gentleness be evident to all. The Lord is near. 6Do not be anxious about anything, but in everything, by prayer and petition, with thanksgiving, present your requests to God. 7And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus. 8Finally, brothers, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable—if anything is excellent or praiseworthy—think about such things. 9Whatever you have learned or received or heard from me, or seen in me—put it into practice. And the God of peace will be with you.
To sum up:
- It is impossible to be neutral with God. You are either for Him or against Him.
- It is impossible to purge yourself of evil and not expect something to occupy that empty space in your 'inner house'. Something will fill it.
- Complacency does not work in the Christian life. We must work at filling our mind and heart with good things.
- Read the Bible daily.
- Pray continually.
- Think about good things.
- Avoid bad things.
- Music with negative lyrics
- Movies with sex, violence, bad language, disrespect to God
- Excessive video games (esp. violent or suggestive)
- Negative personal relationships
- Run away from things you are tempted with that are negative.
- Treat your body like a temple
- Eat right.
- Get rest.
- Exercise.

