What is impurity in the bible? To help understand this we also need to understand the word holy. Holy is a word very specific to religious imagery especially in the Christian church. I wrote about this word and that is means to be set apart, here. Anywhere in scripture where the word holy appears one may rightly substitute the words “set apart” to get a better understanding of what the author is communicating. In my previous post’s example, I looked at Peter’s command for Christians to be holy.

but as he who called you is holy, you also be holy in all your conduct, since it is written, “You shall be holy, for I am holy.” 1 Peter 1:15-16 ESV

Then everywhere Peter used the word holy I replaced it with “set apart”

but as he who called you is set apart, you also be set apart in all your conduct, since it is written, “You shall be set apart, for I am set apart.” 1 Peter 1:15-16

God is Holy not Impure

The full implication begins to emerge that God is apart from the creation. He is not held to the same constraints as creation and he does not participate in conduct, sin, that is contrary to the original purpose of creation. God of the Bible is not part of impurity in any way. In the same way God is Holy he has made a way in Christ for his people to not be like or act like what is normal in this world. He has called Christians to be holy and apart from the way the world acts (He has not called Christians to separate themselves from the world). Paul makes a similar statement about being holy.

7 For God has not called us for impurity, but in holiness. 8 Therefore whoever disregards this, disregards not man but God, who gives his Holy Spirit to you. 1 Thessalonians 4:7-8 ESV

Impure Contrast

While Peter tells us to be Holy, set apart, in all our conduct Paul here tells us the same but he adds a contrast. Paul tells us we are to be holy and not impure. The Greek bible word for impurity ἀκαθαρσία (akatharsia) means unclean and impure in both the physical and moral sense. God did not call us as Christians to remain impure in the physical or the moral sense. When Paul tells the church to not be impure he means do not think or act in the same way as the world.

Not Saved to Remain Impure

Christians are new and alive by God to not lust and chase after the power of this world. Or to live lives of entertainment and distraction. Christians are to be with God holy, set apart, focusing on things like self-control, hard work, compassion, and putting others before our own needs. What God has called Christians to be is not an easy task. For example, in these same verses Paul targets something in this early church that our own culture struggles with.

3 For this is the will of God, your sanctification: that you abstain from sexual immorality; 4 that each one of you know how to control his own body in holiness and honor, 5 not in the passion of lust like the Gentiles who do not know God 1 Thessalonians 4:3-5 ESV

Sanctification of Impurity in the Bible

To abstain from the current sexual ethic and live a life of measured self-control will set one apart. This idea from the Bible of moving away from impurity is sanctification. I took my family to the beach. We dressed in current fashion but modestly. An older gentleman approached me at the pool area and asked if I and my family were Christian. When I responded yes, he said he could tell based on how my family interacts and by how we were dressed. When you are living a life set apart it does not go unnoticed.

God ordained sex as part of marriage. The world says live with abandon without self-control. In my early years I struggled with self-control. Realizing my weakness in this area I had to put some personal rules in place regarding dating. I did this to remain set apart as God impressed on my heart. It was not easy. Now that I am married, I have personal rules in place in how I interact with members of the opposite sex. The goal is to limit the opportunity to live life out of control. In what ways might the Holy Spirit be speaking to you from the Bible? What ways are you moving way from impurity to holiness?

3 Blessed be the God and Father of our Lord Jesus Christ! According to his great mercy, he has caused us to be born again to a living hope through the resurrection of Jesus Christ from the dead, 4 to an inheritance that is imperishable, undefiled, and unfading, kept in heaven for you 1 Peter 1:3-4 ESV