First of all, then, I urge that supplications, prayers, intercessions, and thanksgivings be made for all people, for kings and all who are in high positions, that we may lead a peaceful and quiet life, godly and dignified in every way. (1 Timothy 2:1-2)
The Scriptures commend to us the practice of praying for our nation by both command and example. The current state of polarization and uncertainty, while perhaps not the worst of times, is creating an atmosphere of anxiety and anger. I urge you, saints, not to give in to those darker impulses but instead to cast all your anxieties on God, because He cares for you (1 Peter 5:7). Prayer is one way to do that.
Here is a prayer for the nation offered by the late Dr. R.C. Sproul. I encourage you to take it and make it your own.
Our Father and our God, indeed You are our God, and Your sovereignty extends over all things. That as God, Your relevance and Your dominion can never be restricted merely to the realm of the spiritual or the religious, but that Your sovereignty extends over all creation, over every aspect of our life and of our culture, over our government, over our church, over our schools, over our health, over our wealth, over our thinking, our planning, and our crying. And so we, as Your people, are pleading with You to have mercy upon us, to give us leaders who have a regard for You, who will regard Your name as holy, and who will understand that in whatever office they hold, they are to be Your servants, for You have ordained them. And we ask that You would bring new life to Your church and that we may begin our repentance at our own house and in our own churches as we plead with You to have mercy upon us as a nation, as a people, as a culture that the light of Christ may be rekindled with great glory and intense brightness in our land, and that there would be a revival of a knowledge of Thee without which our land will mourn and our people will perish. And we ask these things in the name of our Lord and Savior, Jesus Christ.
Amen.