The 20th century is said to have been a century of wars, sacrificing more than 20 million people in the world in addition to scores of millions people killed by the Spanish flu and other infectious illness. But, the 21st century might become more tragic.
The basic reason is that men want to be happy in this world to the degree where they would sacrifice others for their own happiness. People want to become happy even if they have to neglect other unhappy people for them to become and stay happy. This trend can be seen from the individual lives to the international relationships. Rich men want to be further richer even if they have to sacrifice or neglect other poor men in order to increase their riches. The notion that rich men are entitled to enjoy their lives as much as their wealth allows and poor men should naturally suffer hard situations is widely and universally taken and accepted by most of people; however, it is a teaching of Satan.
Satan has brainwashed people with the idea that men should try to be rich as much as possible in this world, even neglecting poor people, since there is no afterlife, or even if there is the afterlife, rich men can live happily in the afterlife as much as or more than poor people. People brainwashed with this idea have built up the world as we see today: the world with severe, cruel, and unreasonable competition for the status where men can enjoy their riches without restrictions. Indeed, there are no countries in this world with a law that sets the upper limit on the amount of money people are allowed to earn and possess.
Based on this bad notion and misguided idea, individuals would do any immoral things to capture, keep, and increase their own personal riches; and organizations, societies, and nations would do accept and promote any immoral things to capture, keep, and increase their own material and economic success. As a consequence, evil increases to the level where everyone should suffer materially, emotionally or spiritually, and finally, an unreasonable war should occur between any countries, since leaders of countries are brainwashed by Satan who wants to see peoples suffer. Indeed, Satan has helped people become rich so that they will come to want to be richer by any means and finally they will pursue material wealth and economic success even if they have to launch a war to get, keep, or increase their wealth or material success or dominance.
Put simply, the current war in Ukraine has occurred, though it does not necessarily mean that Ukrainians or Russians are especially immoral or evil. However, even bad guys in the U.S. and other countries should despise the leaders of Russia.
So, the war between Ukraine or Russia has occurred in this material and spiritual situations in the world dominated by Satan. It can become further worse. In Ukraine, once a large-scale nuclear accident happened in the Chernobyl power plant. The battles in Ukraine would trigger such an accident. And, only Satan should be satisfied seeing the world in dismay.
To address the war in Ukraine and other tragedies such as the current pandemic, we have to refuse the teaching of Satan, who wishes the mankind to materially prosper but spiritually suffer, and read the Bible to learn the teachings of Christ Jesus and the God.
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John 3, King James Version
12 If I have told you earthly things, and ye believe not, how shall ye believe, if I tell you of heavenly things?
13 And no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven.
14 And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up:
15 That whosoever believeth in him should not perish, but have eternal life.
16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
John 3, King James Version
12 If I have told you earthly things, and ye believe not, how shall ye believe, if I tell you of heavenly things?
13 And no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven.
14 And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up:
15 That whosoever believeth in him should not perish, but have eternal life.
16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.