Yes. As Jesus Christ prayed (John 17) to His Father before His crucifixion: "And this is eternal life, that they may know Thee, the only true God, and Jesus Christ whom Thou hast sent... I manifested Thy name to the men whom Thou gavest Me out of the world; Thine they were, and Thou gavest them to Me, and they have kept Thy word... for the words which Thou gavest Me I have given to them, and they received them... I have given them Thy word, and the world has hated them because they are not of the world, even as I am not of the world... Sanctify them in the truth; Thy word is truth... And for their sakes I sanctify Myself, that they themselves also may be sanctified in truth..."
or can it, must it, be admitted that Christ gave to His Apostles to be transmitted to His Church, that the Apostles received either from the very lips of Jesus or from inspiration or Revelation, Divine instructions which they transmitted to the Church and which were not committed to the inspired writings?
No, no such thing "can," "must" be admitted. All divine instruction was committed to writing, as this is the way it had always been ordered by God.
Catholics... hold that there must of necessity be certain revealed truths apart from those contained in the Bible.
OH? Exactly what did God leave out that catholics say are necessary?
...they hold furthermore that Jesus Christ has established... a living organ as much to transmit Scripture and written Revelation as to place revealed truth within reach of everyone always and everywhere.
And this "living organ" they call the catholic church. According to God's word, the living organ who reveals truth is the Holy Spirit, not a visible, hierarchal church. "For to us God revealed them through the Spirit; for the Spirit searches all things, even the depths of God... We have the mind of Christ." 1 Cor. 2:16
(Roman catholic church, get over yourself.)
And why does this extra-scriptural revelation contradict written scripture? How can God be inconsistent?
Seems pretty plain to me....
Yes. As Jesus Christ prayed (John 17) to His Father before His crucifixion: "And this is eternal life, that they may know Thee, the only true God, and Jesus Christ whom Thou hast sent... I manifested Thy name to the men whom Thou gavest Me out of the world; Thine they were, and Thou gavest them to Me, and they have kept Thy word... for the words which Thou gavest Me I have given to them, and they received them... I have given them Thy word, and the world has hated them because they are not of the world, even as I am not of the world... Sanctify them in the truth; Thy word is truth... And for their sakes I sanctify Myself, that they themselves also may be sanctified in truth..."
He doesn't say that the word is only what is in writing. If he meant that, then he would have written a book.
Jesus disagrees with you
Pray for the Servant of the Servants of God