Don't love the world. It's all going to end and if you love it, you are making yourself a slave to it. I'll talk about that in just a second, but while we're here, let's take a quick look at 1 John 1:5-6. You will see here that we are only cleansed by the blood of Jesus as long as we are walking in the light as He is in the light. It may sound confusing, but think of it saying you will be wet as long as you are in the water. If you get out of the water, you will dry off. As long as we abide in Christ, we will be cleansed from our sin. If we leave Him to pursue sin, then we will gain the dirt of the world which separates us from Him. If we love the world, we will become a slave to it. Whatever we love, we will be a slave to, and whatever we are a slave to, we will worship, and whatever we worship, we will become like. If we love Jesus, we will be His slave. The apostles often referred to themselves as bondservants (servants by choice). They worship Him and the Bible says that we will be like Jesus. (1 John 3:2) But this isn't just about God, the same goes for idols (things made my man that people worship). Flip to Psalm 135:15-18.
You will see here that the people who make them and those who trust in them become like that which they worship.
Okay, so I know what you're saying. You're accusing me of getting off track. You're saying that I'm talking about idols and you're talking about what you do by yourself behind closed doors. But I'm not off topic yet. Anything you leave God to follow is an idol. We can't just lay God down when we want, or leave Him in the car while we run in and do a quick sin. Flip to 1 Corinthians 6:12-20.
A lot of people use the first part of this verse to validate their sin, but they do not bother to read the whole passage. Read the passage again. When you sin, you bring God with you to do it. If you continue in sin, then you are not producing the fruit of righteousness and the grace you claim does not pertain to you. Now continuing in sin is not the same as just messing up. We all mess up, but continuing in sin is making your identity and placing your trust upon your sin. It's as if you are calling yourself a cussing Christian or a lying Christian or a Thieving Christian. Of course you won't call yourself that, but you might say you're a Liberal Christian (not that a Conservative Christian is what we should be, but that's another blog post... maybe) or a Modern Christian. If you need a modifier because you can't identify with Christ, then you are in danger of leaving Christ. The only exception I can think of at the moment is being a Young Christian. I think that's okay because you are admitting ignorance and showing humility and foreshadowing growth.
So what! Maybe you are thinking that you know sin is bad, and you'll just go and sin for a little while, and then you'll come back because you know that God will forgive you and keep forgiving you. Well before you do that, I want you to read Hebrews 6:4-8. If you have tasted Christ, and you decide to leave. There is no coming back. That is like asking God to send Jesus to die on the cross a second time. It won't happen. You are denying His goodness and making the choice to leave. Instead, read verse 9 and stay in the grace of God, being confident that He has something better.
There is more on this subject, lots more. Read Romans 6-8 to get a better understanding. Jesus died for you to be free from sin. Not free to sin. Think of sinning as putting something between you and Jesus. Think of each sin as a barrier between you and perfection. Each sin is like a drink of alcohol to the alcoholic. It's like a hit of cocaine to the addict. Each one takes someone farther and farther from where they should be, and the result is death.
I say that we're going to sin enough on accident. There's no reason to sin on purpose too.