The prophetic work and sign gifts of the Holy Spirit are not in operation today (I Cor. 12:1-31, 13:8-13).
These verses do not show that to be true. In fact they prove that it is false. These gifts would not cease until "perfection" comes. The scriptures have
always been perfect, so it doesn't refer to that.
Also, the book of Revelations
proves that cessationism is a false doctrine.
The completed, inspired, and inerrant Word of God is the final authority in all matters of faith and practice.
You missed the word "completed".
The Crusader