Matthew proclaims Jesus as the long awaited Messiah, who is the sovereign King over God’s kingdom, that is defeating the current kingdom of darkness, beginning in Bethlehem and culminating in a future New Jerusalem. So if the King has come and the Kingdom is here, then why isn’t the world at peace?
First, its important to understand what theologians call the “already, not yet” aspect of Kingdom, meaning the Kingdom has come, but it is also still coming. When the Word became flesh in the virgins womb, the Kingdom began on planet earth and has been growing ever since through the spreading of the gospel to all nations.
In chapter 24-25, Jesus talks about his second coming, where the Kingdom will be fully realized and Jesus will stand as the sovereign King of the universe. It’s at this second coming that justice will be served, all wrongs will be made right, and only peace and righteousness will reign forevermore.
Here’s what Jesus says, “When the Son of Man comes in his glory, and all the angels with him, then he will sit on his glorious throne. Before him will be gathered all the nations, and he will separate people one from another as a shepherd separates the sheep from the goats.” (Matt. 25:31-32). And then Jesus will say to the goats, “‘Depart from me, you cursed, into the eternal fire prepared for the devil and his angels.” (Matthew 25:41).
So the reasons we still have wars, slaughtering of children, computer hacking, school shootings, cancer, child abuse, spouse abuse, sex trafficking, fornication, adultery, homosexuality, antibiotics, children hospitals, prisons, and funeral homes; is because the Kingdom of Christ has invaded the kingdom of this world, but not yet defeated it. But when the King comes back, this will no longer be true, because the kingdom of this world will be destroyed. And those who follow Christ will shine forevermore in His glorious new Kingdom, while those who reject the King will face rejection from him, forevermore.