Explain what you mean please. i don't clearly see the point that you are making with this post.
The Bible says in
Romans 12:19 "Dearly beloved, avenge not yourselves, but [rather] give place unto wrath: for it is written, Vengeance [is] mine; I will repay, saith the Lord."
You recall the scriptures (as far as I can tell from your post) that reside in the very next chapter that say...
Rom 13:1 Let every soul be subject unto the higher powers. For there is no power but of God: the powers that be are ordained of God.
Rom 13:2 Whosoever therefore resisteth the power, resisteth the ordinance of God: and they that resist shall receive to themselves damnation.
Rom 13:3 For rulers are not a terror to good works, but to the evil. Wilt thou then not be afraid of the power? do that which is good, and thou shalt have praise of the same:
You then ask if Paul was contradicting God...
Could you explain the contradiction you see?
I assume this contradiction is with someones interpretation etc... not trying to be problematic... I just currently do not see clearly what you are saying.
Thanks.