Romans 13:4

for he is the minister of God to thee for good. But if thou do that which is evil, be afraid; for he beareth not the sword in vain; for he is the minister of God, a revenger to execute wrath upon him that doeth evil.

The apostle now, in his exhortation, shows the duties which every person owes the government, and in which the Christians will lead all others with a cheerful sense of duty. Since this is the only place in which Paul treats at greater length of the duties toward civil authorities, it is probable that circumstances made it necessary for him to include this information at this point, either to curb the spirit of the Jewish Christians or to prepare all the Christians of Rome for the treatment which they afterward received at the hands of the tyrant Nero. Paul's statements are very general, and find their application in all ages of the world; they indicate exactly the divine right and the divine dignity of the government, but, at the same time, limit the functions of the civil authorities to matters pertaining to this world, to the physical well-being of the subjects and to the duties of citizenship.

The apostle's words are all-inclusive: Let every soul subject itself to authorities existing above it. Every person, without exception, within a community, state, or country is spoken of and addressed in this command. He should be subject to, submit himself willingly, without the application of force or restraint, to the existing powers or authorities, to the persons that are invested with power, to the incumbents of the governmental office. The governmental powers vested in these people by virtue of God's providence or permission gives them a position in which they excel us in dignity and authority; they are our superiors in the sense of the Fourth Commandment. This is expressly brought out: For there does not exist an authority except by God; but those that exist are ordained by God. If a government is actually in power, whether tyrannical or otherwise, its existence cannot be explained but by the assumption that it is due to God's establishment, either by His providence or by His permission. It would be impossible for any government to keep evil in check if the almighty hand of God were not the sustaining power. "Not only is human government a divine institution, but the form in which that government exists, and the persons by whom its functions are exercised, are determined by His providence. All magistrates of whatever grade are to be regarded as acting by divine appointment; not that God designates the individuals, but that, it being His will that there should be magistrates, every person who is in point of fact clothed with authority, is to be regarded as having a claim to obedience, founded on the will of God. " (Hodge.) This being the case, therefore, whosoever, everyone that, resists the power resists the institution of God. If any person refuses obedience to the government to which he is subject in any point left free by God's express command or prohibition, he rebels, not only against the lawful authority of the government, but incidentally against God Himself, who established government. And they that resist will receive to themselves judgment, the sentence of condemnation. Not only will they make themselves liable to prosecution and punishment on the part of the government, but they will be looked upon and treated as rebels by God, who will not have the authority vested by Him disregarded. History shows that the visitations of God upon rebellious peoples have been very severe.

The apostle now brings another reason for the duty enjoined in the first verse: For the authorities, those that rule, are a terror, a cause for fear, not to the good work, but to the evil. That is the purpose for which God has established government: it is to be a matter of fear, its power is to strike terror into the hearts of the rebellious, just as its dignity is to cause reverence and respect in the minds of all subjects. It is only he that does evil who must fear the civil authorities, not he that does good. He that transgresses the laws of the country, and refuses to live in accordance with the demands of civil righteousness, must expect to be treated as his behavior merits. If, then, a person does not want to live in continual fear of the government in the rightful discharge of its duties, he should be concerned about doing good, about living up to the laws of the country, about doing his duty as a citizen. Then he will have praise from the authority, or government; he will be recognized and treated as a good, dutiful citizen. For the magistrates, the persons in authority that are actually conscious of the responsibility and power vested in them, will then act so that the government will be the servant of God to every good citizen for good. For that purpose the government is established and upheld by God, for the benefit of the citizens that are law-abiding, to protect and defend them against wrong, to seek the welfare of society in every way. But if someone will do wrong, will deliberately transgress the laws of the city, state, or country in which he lives and whose protection he enjoys, then he should fear. Far the government nowhere bears the sword, the symbol of authority, in vain; it is not for nothing that the civil authorities are invested with the right to punish, if necessary, by administering the condemnation of death upon the transgressors of the law. God's minister the government's power is, both in protecting and in punishing, and, in the latter case, avenging unto anger, manifesting and exercising revenge and wrath upon him that makes it a practice to do evil. Thus the government, according to God's will, is the guardian of law and order, including external morality. And this reason is sufficient to keep the Christians peaceful and law-abiding, no matter under what form of government they are living, no matter if the persons in authority are morally corrupt. If the members of God's kingdom can but lead a quiet and peaceable life in all godliness and honesty and build up the Church of Christ, they are duly thankful to God. And if a hostile government uses tyrannical measures to suppress the work of the Church, Christians will not assume a rebellious attitude, but will try to gain their object by legitimate means, by invoking the statutes and the constitution of their state or country. It is only when the government demands anything plainly at variance with the revealed will of God that the Christians quietly, but firmly refuse to obey, Acts 5:29.