Christ's disciples should not engage in the trying, judging, or sentencing of others. Under the New Covenant, God states that He reserves this to Himself.
If we are summoned to serve on a jury, how would we respond? Christ has counseled us that we should not condemn lest we be condemned; judgment is His.
We must be willing to allow God to make changes in our thinking, even when those changes discomfort the beliefs to which we have acclimated ourselves.
Christians have been called out of this world's politics, voting included. As ambassadors of Christ, we cannot participate in the politics of another country.
By not revealing everything immediately, God has been employing teaching techniques that have taken the educational community thousands of years to discover.
As ambassadors and citizens of the Kingdom of God, true Christians must not be a part of the affairs of this world, including civil judgments.