Summary: A mature Christian cannot easily be shaken by this world because of their devotion to Jesus.
Christendom is full of people who call themselves Christians, yet they fail to manifest the presence of Jesus Christ in their lives. Oh, by the standards of the world they may live disciplined lives, and they are what most folk would call good people, but they don’t measure up to what the bible describes as a true Christian. There is a vast gulf, which exists between those who have a head knowledge about Jesus and those whose hearts are filled with the spirit of Jesus. Does this mean that those who only know about Jesus are not saved? God is the only one who knows that! What we do know is that it would be a very foolish person who thinks that they are a Christian because of some ritual they performed or because of being the member of a church.
Jesus said that if we are in Him then we will obey His commands, and He also said that He has come so that we might have life and have it more abundantly. If you have Jesus then you obey Him and you have a life that is truly a joy to live. If you are in Christ then you have everything a soul can possibly want and thus there is absolutely no reason for a person not to manifest the joy of the Lord. Yet, you ask a so called Christian: "how do you feel?" and they say: "ok." You ask a Christian; "how was your day?" and they say: "ok." You stand off to the side and watch a Christian and what do you see? You see frustration, anger, worry, anxiety, sickness, emotional disorder, mental disorder, and a long face. Now I ask you: "why do you see these things in Christians?" It is because they are so much a part of this world, and so disobedient, that the world can shake the joy of the Lord right out of them.
DO NOT BE A PART OF THAT WHICH CAN BE SHAKEN
The author of Hebrews writes: See to it that you do not refuse him who speaks. If they did not escape when they refused him who warned them on earth, how much less will we, if we turn away from him who warns us from heaven? At that time his voice shook the earth, but now he has promised, "Once more I will shake not only the earth but also the heavens." The words "once more" indicate the removing of what can be shaken-- that is, created things-- so that what cannot be shaken may remain. Therefore, since we are receiving a kingdom that cannot be shaken, let us be thankful, and so worship God acceptably with reverence and awe, for our "God is a consuming fire." (NIV) Hebrews 12:25-29
If the things of this world can shake you then you are in a poor condition to be calling yourself a Christian. Now don’t run off and get mad! Yes God still loves you and yes other Christians still love you; but you got some things that need working out. To start with, because you are a born again Christian you should not be a part of this world. If you are not of this world then this world cannot shake you. You should be a part of the kingdom of God. The kingdom of God cannot be shaken and thus you should not be able to be shaken. Perhaps the reason you can be shaken by the world is because you still have one foot in this world … most of us do. Things like a career, a spouse, your physical body, your emotions, and your mind are all examples of chains, which can bind us to this world. You will never be able to break these chains until you have died to yourself and then been reborn into the spirit of Jesus. I don’t know about you but I have to remind myself of this over and over again. As long as we are bound to this world by the chains of human reason the kingdom of God cannot dominate our heart … it can only run around in our head. As long as we primarily have head knowledge of Jesus we will not be strong enough to resist being shaken by the things of this world.