We ought in these days to take note of the Barmen Declaration (1934), from which I excerpt the following.
2. “God made Jesus Christ to be for us our wisdom and righteousness and sanctification and redemption” (1 Cor. 1:30).
Affirmation: Just as Jesus Christ is God’s assurance of the forgiveness of all our sins, so also, and with the same earnestness, he is God’s powerful claim upon our entire life. Through him a joyous liberation from the godless conditions of this world occurs for us, a liberation for free, grateful service to his creatures.
Repudiation: We reject the false doctrine, as if there are domains of our life in which we do not belong to Jesus Christ but to other lords, domains in which we would not need justification and sanctification by him.
3. “But let us be upright in love and grow in every respect into him who is the head, Christ, from whom the whole body is joined together” (Eph. 4:15-16).
Affirmation: The Christian church is the congregation of brothers in which Jesus Christ acts presently as the Lord in word and sacrament through the Holy Spirit. As the church of forgiven sinners, it has to testify in the midst of the world of sinners, both with its faith and its obedience, with its message as well as with its order, that it alone is his property, that it lives and wants to live solely from his comfort and by his direction in anticipation of his appearance.
Repudiation: We reject the false doctrine, as if the church could relinquish the form of its message and its order to its own pleasure or to changes in prevailing ideological and political convictions.
5. “Fear God, honor the king” (1 Pet. 2:17).
Affirmation: Scripture says to us that the State, according to divine arrangement, has the task to be concerned for justice and peace in this still unredeemed world in which the church also stands, and to do so according to the standard of human insight and human ability, under penalty of threat and the use of force. In gratitude and reverence toward God, the church recognizes the benefit of this, his arrangement. The church reminds itself of God’s kingdom, of God’s command and justice, and thereby, of the responsibility of those governing and of the governed. It trusts and obeys the power of the word by which God upholds all things.
Repudiation: We reject the false doctrine, as if the church, beyond its special task, should and could take over state-governmental actions, state-governmental tasks, and state-governmental positions and thereby become itself an organ of the state.
 Martin Heimbucher and Rudolf Weth, eds., Die Barmer Theologische Erklärung: Einführung und Kokumentation, foreword by Wolfgang Huber (Neukirchen-Vluyn: Neukirchener Verlag, 2009), 33-43. Translated by Matthew Becker, Ph.D. (http://matthewlbecker.blogspot.com/…)