“Your kingdom come, your will be done, on earth as it is heaven.” Matt. 6:10
How well do I know these words? How often do I pray/say them? But do I mean them? Paul David Tripp suggests how dangerous these words may be–to my little kingdom:
“There are things I want in my life, and I not only want them, but I know how, when, and where I want them! I want my life to be comfortable…my schedule to be unobstructed and predictable…people around me to esteem and appreciate me…control over the situations and relationships in my life…I don’t want to suffer. I don’t want to leave without…What I am saying is that I want my kingdom to come and my will to be done.
Thy kingdom come is a dangerous prayer, for it means the death of your own sovereignty. It means your life will be shaped by the will of Another. It means that you will experience the messiness, discomfort, and difficulty of God’s refining grace. It means surrendering the center of your universe to the One who alone deserves to be there. It means loving God above all else and your neighbor as yourself. It means experiencing the freedom that can only be found when God breaks you bondage to You! It means finally living for the one glory that is truly glorious, the glory of God.
Thy kingdom come, are words of surrender, words of protection, words of grace that can only be prayed by those who’ve been delivered by the Redeemer from…the kingdom of self.” 
Unlike many governments in place today, God’s kingdom is not one to be feared. God’s kingdom is a reign of grace (A.W. Pink). The ruler and King is Jesus, full of grace and truth, “blessed and only Sovereign, the King of Kings and Lord of Lords.” (I Tim. 6:15) .
His kingdom is also a reign of love. “But in all these things we overwhelmingly conquer through Him who loved us!” (Rom. 8:37). “There is no fear in love, but perfect love casts out fear, because fear involves punishment, and the one who fears is not perfected in love. We love, because He first loved us.” ( I John 4:18,19)
And so much more:
“The kingdom of God is righteousness, and peace and joy in the Holy Spirit.” Romans 14:17
“Seek first His kingdom and His righteousness, and all these things shall be added unto you.” Matt. 6:33
“For He delivered us from the domain of darkness and transferred us to the kingdom of His beloved Son, in whom we have redemption, the forgiveness of sins.” Col. 1:13, 14
A dangerous prayer? Yes, to my self-driven kingdom of one. But more so, a comforting prayer, as I surrender to the One who loves perfectly; He became poor, took on my griefs and sorrows, died, and rose again! I can trust Him. Why do I fear, when His kingdom is the safest place to be?
Your kingdom come, your will be done, on earth as it is heaven.
 Paul David Tripp, Whiter than Snow: Mediations on Sin and Mercy. Crossway Books, 2008. Wheaton, IL. pps 61-62.