James 4:7 Submit yourselves therefore to God. Resist the devil, and he will flee from you.
This can be very difficult at first because to submit yourself to God means you must embrace the cross. But, if God is speaking to you and you are sincere in wanting to know for sure if that is God, simply pray, He'll make it very clear that it is Him and not the devil. Likewise, if you suspect it is the devil speaking to you, again pray, God will intervene on your behalf and the devil will flee from you. In warfare it is extremely dangerous to be a spy, a spy will be executed while a soldier has legal rights even in a time of war. This is true in the spiritual warfare as well. You pray that the influence of the devil in your life will be exposed, you pray that every person who comes into your life and every thing, every object, must go through the cleansing of the blood of Jesus and Satan will be exposed and you can bet he will flee because the penalty for being a spy in the spiritual warfare is very severe.
8 Draw nigh to God, and he will draw nigh to you. Cleanse your hands, ye sinners; and purify your hearts, ye double minded.
Take a look at every single person that you truly respect. Doesn't matter if it is Michael Jordan, or Tom Brady or Mike Tyson. The one thing they all had in common was they were not double minded. They had a singular focus that they pursued. Granted, when Mike Tyson lost that focus he also lost his fights and went to prison. But you can repent and be restored. Rocky Marciano, Mohammed Ali and Mike Tyson had nothing in common with their fighting styles, but the one thing they all had in common was they were not double minded. The process is simple. When you hear the gospel you are in the world, fully in the world. You need to draw nigh to God, doing that will cause you to leave the things of the world. When I first got saved I moved out of a college dorm and into a brothers house. We had morning watch every morning in the word of God. We had people over to the house to fellowship and we were invited to other peoples homes for dinner to fellowship. I went to six meetings a week, we had a prayer meeting on Wednesday night, a meeting studying the Bible Friday night, Saturday morning was a service meeting, Saturday night was a meeting for college kids, the Lord's day we had the normal service and in the evening we had the Lord's table where everyone could share their personal testimonies of the Lord from that week. Now because of that I didn't have time for TV and didn't have a TV. If you get rid of the TV it is amazing how much time you have to follow the Lord.
9 Be afflicted, and mourn, and weep: let your laughter be turned to mourning, and your joy to heaviness.
The things that people in the world find funny are like drinking poison. The things that come out of their mouth reveal what is in their heart.
10 Humble yourselves in the sight of the Lord, and he shall lift you up.
There is nothing greater than having a word that saves someone who was headed for destruction. Over fifty years I have seen people pursue paths that they thought were lifting them up only to discover in the end that it was all a lie. I heard something that a Billionaire said that I thought was very funny. He said if I were to give advice to my younger self I would tell him that when you get to the top of the mountain you will discover that there is nothing there. I thought that was hilarious because I had climbed a lot of mountains in the Adirondacks during my life. When you climb a mountain it is healthy for both mind and body. It is beautiful and restorative. Beautiful mountain streams and lakes. But eventually you get to the top of that mountain and there is nothing there. It is a terrible place to be. It seems the rain, wind and storms are always on the top of the mountain even if the rest of the hike had been a pleasant day. No one wants to live on top of a mountain, just look at what it is like on top of Mount Washington. You get to the top, you take some pictures, and then you get off of that mountain and come back down to where it is nice again.
11 Speak not evil one of another, brethren. He that speaketh evil of his brother, and judgeth his brother, speaketh evil of the law, and judgeth the law: but if thou judge the law, thou art not a doer of the law, but a judge.
The Law is like a ruler or an instrument used to measure. It is given to us so that we could examine ourselves to see whether or not we are in Christ. The only way you can actually "do the law" is if you are in Christ. Now you can try to do the law on your own, but it is like hiking up that mountain in socks, rather than in boots. It won't last long. But many don't use the law to measure their own spiritual health but rather to condemn others. This is a defense mechanism they have learned in the world. If you are dead in sin but also hearing the word of God condemn you at the same time, the defense mechanism is that everyone else is dead too. There are two possible responses, you can be convicted of sin and repent, or you can claim everyone else is a sinner too as though that means it doesn't matter. But what you are actually doing is judging others for the sins that you commit. The Lord said "with what judgement you judge you shall be judged". You are actually judging yourself.
12 There is one lawgiver, who is able to save and to destroy: who art thou that judgest another?
This question is the cure to being in a cult. A cult is simply "group think". When you are judging another you are not a sinner saved by grace, nor are you the judge who has been appointed to judge others. So who are you? You are a sinner, you are guilty, the word convicts you so your only defense is "everyone else is guilty too". That is not a defense, but that is why people are in cults or in group think. A person joins the Moonies because they have seen the world is evil, they know the answer is spiritual, but that is all they know and so they will just put their faith in the others in the group and just follow them. They are right to see that world is evil and that pursuing the things in the world is vanity. They are right to realize they need a spiritual answer. But you haven't found it because now you think you are "holier than thou", you have come to a spot of being self righteous while at the same time being convicted of your sins.
13 Go to now, ye that say, To day or to morrow we will go into such a city, and continue there a year, and buy and sell, and get gain: 14 Whereas ye know not what shall be on the morrow. For what is your life? It is even a vapour, that appeareth for a little time, and then vanisheth away.
The other side of the coin is the guy who has worked hard in college, gotten a good job, working hard, he is married, has a house, a car, and is on the hamster wheel the world has given him. You are so busy running on that hamster wheel you haven't stopped to consider that in one instant everything will vanish away. Maybe during the funeral of a coworker or friend you will realize it.
15 For that ye ought to say, If the Lord will, we shall live, and do this, or that.
In the grand scheme of things where is your life when it is all said and done? When I read history none of the lives impress me, you have generals who won battles, kings who went to war, but in the end what did Caesar accomplish? What did Napoleon accomplish? Perhaps you can argue that George Washington was walking according to God's will. Benjamin Franklin said that "George Whittington was the revolution". The lives that stick out to me are those who were aligned with God's will. Everyone else thought they were really big, but in the end they were just a really big failure.
16 But now ye rejoice in your boastings: all such rejoicing is evil. 17 Therefore to him that knoweth to do good, and doeth it not, to him it is sin.
This chapter began talking about why we have wars. But it concludes with why do we have evil. We have evil because those who know the Lord do not take a stand for the Lord.