Summary: A look at sin from an infection perspective, includes some medical tech info.

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I would like to begin this morning by talking about a subject that you may feel has nothing to do with Ephesians 4:31-32. I assure you that it has everything to do with it so I ask that you bear with me. I would like to talk to you about infections. Yes, I said infections. Whne we understand a little bit about infections then the meaning of these two verses we are looking at will become clearer. Our first question, then, is what is an infection?


An infection is an invasion of plant or animal tissues by microorganisms. We know these microorganisms by the names bacteria, viruses, and fungi. Invading organisms such as bacteria produce toxins that damage host tissues and interfere with normal metabolism. Some toxins are actually enzymes that, by breaking down host tissues, prevent the localization of infections… which means the infection is allowed to spread. Viruses and retroviruses are parasitic on host cells, causing cellular degeneration: such as in rabies and AIDS. Some viruses have been associated with the development of certain cancers.

Paul has been speaking to us in Ephesians chapter 4 about how we should “walk worthy” of the calling that we have (4:1). He has been encouraging us to move away from being spiritual children and to move towards maturity in Christ. This means several different things as we have seen. It first means that we must realize that we, as Christians, are different from the world. This is a fact that we cannot forget and we cannot let escape us. Paul outlines for us a few examples of our difference: we speak honestly, we deal with our anger properly, we work hard and give to the needy, and our speech is uplifting and wholesome.

These last two verses in chapter 4 are a wonderful summary and exclamation point on everything he has been saying and I think add one more fact about us as Christians. These last two verses speak about our attitudes about sin. I would like us to view these last two verses keeping in mind everything we’ve talked about concerning infections.


I told you that I wanted to talk to you today about infections, but our topic is not the kind of infections you get in your body. I am speaking of spiritual infections of sin. Paul, in his final words of chapter 4, again emphasizes that the Christian person is one who guards against sin and resists temptations. What is a sin?

A sin is an invasion of the spirit by unholy or selfish ideas and thoughts. We know these selfish ideas and thoughts by the names bitterness, anger, and evil speaking. Invading sins such as bitterness produce toxins that damage a person’s spirit and interfere with normal function and communication with God. Some sins are actually hard to deal with, in that they break down the spirit’s defenses and prevent the localization of sin… which means the sin is allowed to spread and grow into other sins. Some sins, like anger and evil speaking dig themselves deep in a person’s spirit, causing spiritual degeneration: such as constant arguing, grudges, a potty mouth, and taking the Lord’s name in vain. Some sins have even been associated with the development of certain addictions.

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