Historically Anabaptists have not been big on confessions of faith; however, on February 24, 1527, a Conference of Swiss Brethren (“A Brotherly Union of a Number of Children of God”) produced what is sometimes referred to as the "The Schleitheim Confession,” though more properly it is “The Seven Articles of Schleitheim.”
The 6th article responds to those who seek accommodation between the civil and spiritual sword.
The thoughts are worthy of consideration…
“The sword is ordained of God outside the perfection of Christ. It punishes and puts to death the wicked, and guards and protects the good. In the Law the sword was ordained for the punishment of the wicked and for their death, and the same (sword) is (now) ordained to be used by the worldly magistrates. In the perfection of Christ, however, only the ban is used for a warning and for the excommunication of the one who has sinned, without putting the flesh to death - simply the warning and the command to sin no more. Now it will be asked by many who do not recognize (this as) the will of Christ for us, whether a Christian may or should employ the sword against the wicked for the defense and protection of the good, or for the sake of love. Our reply is unanimously as follows: Christ teaches and commands us to learn of Him, for He is meek and lowly in heart and so shall we find rest to our souls. Also Christ says to the heathenish woman who was taken in adultery, not that one should stone her according to the Law of His Father (and yet He says, As the Father has commanded me, thus I do), but in mercy and forgiveness and warning, to sin no more. Such (an attitude) we also ought to take completely according to the rule of the ban. Secondly, it will be asked concerning the sword, whether a Christian shall pass sentence in worldly disputes and strife such as unbelievers have with one another. This is our united answer. Christ did not wish to decide or pass judgment between brother and brother in the case of the inheritance, but refused to do so. Therefore we should do likewise. Thirdly, it will be asked concerning the sword, Shall one be a magistrate if one should be chosen as such? The answer is as follows: They wished to make Christ king, but He fled and did not view it as the arrangement of His Father. Thus shall we do as He did, and follow Him, and so shall we not walk in darkness. For He Himself says, He who wishes to come after Me, let him deny himself and take up his cross and follow Me. Also, He Himself forbids the (employment of) the force of the sword saying, The worldly princes lord it over them, etc., but not so shall it be with you. Further, Paul says, Whom God did foreknow He also did predestinate to be conformed to the image of His Son, etc. Also Peter says, Christ has suffered (not ruled) and left us an example, that ye should follow His steps. Finally it will be observed that it is not appropriate for a Christian to serve as a magistrate because of these points: The government magistracy is according to the flesh, but the Christian's is according to the Spirit; their houses and dwelling remain in this world, but the Christian's are in heaven; their citizenship is in this world, but the Christian's citizenship is in heaven; the weapons of their conflict and war are carnal and against the flesh only, but the Christian's weapons are spiritual, against the fortification of the devil. The worldlings are armed with steel and iron, but the Christians are armed with the armor of God, with truth, righteousness, peace, faith, salvation and the Word of God. In brief, as in the mind of God toward us, so shall the mind of the members of the body of Christ be through Him in all things, that there may be no schism in the body through which it would be destroyed. For every kingdom divided against itself will be destroyed. Now since Christ is as it is written of Him, His members must also be the same, that His body may remain complete and united to its own advancement and upbuilding.”