Thematic Bible: Who is a minister of God

Let everyone put himself under the authority of the higher powers, because there is no power which is not of God, and all powers are ordered by God. For which reason everyone who puts himself against the authority puts himself against the order of God: and those who are against it will get punishment for themselves. For rulers are not a cause of fear to the good work but to the evil. If you would have no fear of the authority, do good and you will have praise; read more.
For he is the servant of God to you for good. But if you do evil, have fear; for the sword is not in his hand for nothing: he is God's servant, making God's punishment come on the evil-doer. So put yourselves under the authority, not for fear of wrath, but because you have the knowledge of what is right. For the same reason, make payment of taxes; because the authority is God's servant, to take care of such things at all times.

Do we seem to be again attempting to put ourselves in the right? or have we need, as some have, of letters of approval to you or from you? You yourselves are our letter, whose writing is in our heart, open for every man's reading and knowledge; For you are clearly a letter of Christ, the fruit of our work, recorded not with ink, but with the Spirit of the living God; not in stone, but in hearts of flesh. read more.
And this is the certain faith which we have in God through Christ: Not as if we were able by ourselves to do anything for which we might take the credit; but our power comes from God; Who has made us able to be servants of a new agreement; not of the letter, but of the Spirit: for the letter gives death, but the Spirit gives life.