MerelyChristian questions Christians' involvement in "politics and social issues of the day":

"Why", I have asked, "are Christians so interested in politics?" One hundred years from now, will it really matter who one endorses or votes for?

One could make an argument of how useless voting may be (and I have made such arguments), but as long as there's a reasonable doubt about its uselessness, passing up such a simple, in-your-face chance to work a good deed would indeed be foolish. Insofar as voting requires forethought, advance discussion of the social issues of the day, in the spirit of discovering the Lord's will in the matters, would also be wise. Such public discussions can (by the Spirit's power) effect change in people's hearts so that social (and political) change occurs from the ground up.

Politically active Christians do not place their hope in politics, nor should they. There is no hope in this world. No, our hope is in our King. Any political change for the better is to His credit and not ours, just as any newly saved believer owes credit to His Savior and not His witnesses. But as Godly credit does not alleviate the duty of a disciple to be a witness to the lost, so it does not alleviate the duty of a disciple to be a witness in the political and social arenas.

I simply do not read about political activism in Scripture.

A number of Biblical saints were politicians and political activists of one sort or another. The patriarchs were the government of their day. Moses acted as a Godly legislature and judge. At least some of Israel's and Judah's kings were Godly servants. Daniel and his friends were politicians and governmental leaders, even under the ungodly rule of foreign powers. Esther was a queen who played politics well enough to perform her God-given role in saving God's people. Even Mordecai, an obvious outsider to politics, used the political system that was available to him to also help save the Chosen (and the pagan king, for that matter). Paul appealed to the political machination of Rome in his defense.

Do we think that it is somehow our duty--as Christian, not as patriots--to become involved in the political process?
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We are told to obey "the powers that be"; In our Lord's earthly life, those powers were corrupt, unjust, murderers of saints, and worse.

To be sure, we struggle against the "spiritual forces of wickedness in the heavenly realms" by fervent prayer and fasting. But the "rulers, authorities, and powers" are most certainly those "of this dark world" against which we struggle. Two battlefields are clearly described. One is heavenly and spiritual, while the other is worldly and political. Were we to lay down our arms (the Word) in the political arena, we would be failing half our duty. By not engaging in the battle "against the rulers, against the authorities, against the powers of this dark world" who are "corrupt, unjust, murderers", we disobey our King and Commander.