When Jesus was casting out demons, some said that he did so by the prince of demons (Lk 11:14-26). First, Jesus answered them logically, if that is true, then the kingdom of Satan is in a civil war and cannot stand. Next he attacked with what does that say about your sons? (We know of at least 82 who had this power). Finally, he reveals his mission and the purpose for casting out demons. He has come to tear down Satan's house and take all his possessions and power.
Then, he challenges with the consequences of what we decide about his mission. First, He leaves no middle ground: One is either for him or against him. Getting rid of your demons leaves your house empty. He demands you be filled with him to prevent the return of worse demons. As stated later in the context, "If your eye be single, your whole body shall be full of light (11:34).
Obviously, this leaves the long ago baptized, pew sitting church member in serious jeopardy! Further, one cannot be 80% or 90% for Jesus. We are either empty or full. As Jesus said in 16:13, "You cannot serve two masters…You cannot serve God and mammon" (mammon = yourself, security, possessions, etc.).
As adamant as Jesus was about this all or nothing commitment to him, we are not surprised to find the Apostles living and preaching the same. Though all the New Testament teaches us to put away wickedness in every form, it appears that more space is giving to filling ourselves with right things than exorcising our demons, whether they be addictions, sexual fantasies, greed, ambition, etc.
"Let the peace of Christ rule in your hearts…Let the word of Christ dwell in you richly." (Col 3:15-16).
"Which is Christ in you, the hope of glory" (Col 1:27).
"No more I that live but Christ lives in me" (Gal 2:20).
"Present your bodies …holy, acceptable to God" (Rom 12:1-2).
"The fruit of the spirit is…" (Gal 5:22-24).
"Add to your faith virtue…..if you do these things you will never stumble" (2Pet 1:5-11).
And these are only a few of such passages.
Paul encouraged Christians to follow his example in leaving all things behind in the pursuit of "the prize of the high calling of God in Christ Jesus" (Phil 3:14). Doing "the best I can" leaves a swept empty house. Rather, we must stretch for all we can do through the help and grace of God.
Beware lest, through your lack of growth and lack of diligence and striving, you be filled with seven worse demons.
Follow after peace with all men, and the sanctification without which no man shall see the Lord. (Heb12:14).
Keith Ward