Does it? Does the Bible tell us it has this sufficiency to the exclusion of any other source of authority? What does this Scripture tell us about the Church?
If the other sources were "GOD breathed" they would be in SCRIPTURE.
Again, you are presuming that everything "God breathed" is encapsulated within Scriptures. Sure, Scripture is God-breathed, but so are sacramental actions. So is the Liturgy. So is prayer. So are oral Apostolic Teachings. All are works begun and nutured by the Spirit, God's "Breath".
If GOD intended for pastors to have supernatural powers in every generation GOD would have made it very clear in SCRIPTURE.
He did.
Neglect not the gift that is in thee, which was given thee by prophecy, with the laying on of the hands of the presbytery. 1 Tim 4:14
Of course, Christ gave powers of forgiving sins and binding/loosening to the Apostles directly. If Christ expects His Church to exist for all time, can you give me a logical reason why He would not continue to provide this ministry to the Church for all time?
Regards