As to the matter of Scriptural interpretation, I recently received this in my mailbox:

"1 ¶ Then came to Jesus scribes and Pharisees, which were of Jerusalem, saying, 2 Why do thy disciples transgress the tradition of the elders? for they wash not their hands when they eat bread. 3 But he answered and said unto them, Why do ye also transgress the commandment of God by your tradition? 4 For God commanded, saying, Honour thy father and mother: and, He that curseth father or mother, let him die the death. 5 But ye say, Whosoever shall say to [his] father or [his] mother, [It is] a gift, by whatsoever thou mightest be profited by me; 6 And honour not his father or his mother, [he shall be free]. Thus have ye made the commandment of God of none effect by your tradition. 7 [Ye] hypocrites, well did Esaias prophesy of you, saying, 8 This people draweth nigh unto me with their mouth, and honoureth me with [their] lips; but their heart is far from me. 9 But in vain they do worship me, teaching [for] doctrines the commandments of men."

This is from Matthew 15, and the person who sent it to me followed it up with this observation:

...what your failing to realize that it is jesus talking against tradition in general...In catholic tradition they say they believe in jesus, but inside they really dont believe because of their traditions make the commandment of god of non effect...I aint got no traditions, so you completely fail in this.

I'm going to go out on a limb and hazard a guess that this is the sort of thing one might expect to be said by a person who harbours a deep-seated animosity toward Catholics (some of the text I've cut out is far less charitable than what remains), but it is also what one might expect to be argued by a person who believes that only Scripture can interpret Scripture (a common trope). It's also something one might expect to be told by a person who greatly fears that giving any authority to Church tradition will only result in the message and content of Scripture becoming tainted and perverted. The explicit rejection of tradition is...well...striking.

I ain't got no traditions. Ignoring the double-negative, this apparently Biblical Christian makes one critical error: he assumes that giving authority to tradition is against the Bible. While I might be tempted to speculate that this is a result of a sola scriptura way of thinking, I will note that the rejection of tradition is itself actually an anti-Biblical concept.

For example, consider 2 Thes. 2:

[13]But we are bound to give thanks to God always for you, brethren beloved by the Lord, because God chose you from the beginning to be saved, through sanctification by the Spirit and belief in the truth.
[14] To this he called you through our gospel, so that you may obtain the glory of our Lord Jesus Christ.
[15] So then, brethren, stand firm and hold to the traditions which you were taught by us, either by word of mouth or by letter.
[16] Now may our Lord Jesus Christ himself, and God our Father, who loved us and gave us eternal comfort and good hope through grace,
[17] comfort your hearts and establish them in every good work and word.

We can see here that St. Paul actually places great importance on the Church holding fast to the traditions which the apostles taught to them. The traditions themselves go unspecified here, but the point is nevertheless that tradition forms an integral, necessary part of the practice of the Christian faith, and is itself a mode of teaching which the Church should strive to consider and convey.

Right here, we see the rejection of all tradition as a mode of Christian practice to be unbiblical. Moreover, we also begin to see the seeds of something else emerging -- Scripture is not the only teaching authority which Paul himself recognizes or suggests the use of. Turning, briefly, to Ephesians 3, we can also observe that Paul taught thusly:

[7] Of this gospel I was made a minister according to the gift of God's grace which was given me by the working of his power.
[8] To me, though I am the very least of all the saints, this grace was given, to preach to the Gentiles the unsearchable riches of Christ,
[9] and to make all men see what is the plan of the mystery hidden for ages in God who created all things;
[10] that through the church the manifold wisdom of God might now be made known to the principalities and powers in the heavenly places.
[11] This was according to the eternal purpose which he has realized in Christ Jesus our Lord,
[12] in whom we have boldness and confidence of access through our faith in him.

Here we see that Paul further expands the notion of where teaching authority, which would include interpretive authority over Scripture, is found: the Church itself is, in Paul's desire, the means by which the wisdom of God should be made known to the world. This is confirmed in the first letter to Timothy, chapter 3:

[14] I hope to come to you soon, but I am writing these instructions to you so that,
[15] if I am delayed, you may know how one ought to behave in the household of God, which is the church of the living God, the pillar and bulwark of the truth.

The Church -- not Scripture -- is "the pillar and bulwark of the truth." That is a Biblical teaching. So let's tie this all back. We have the Church as the pillar and bulwark of truth, the means by which the wisdom of God (expressed in the Word of God) is to be made known to all nations and peoples. That means that the Church must be possessed of authority to interpret Scripture (the Word of God), and that it should do so while holding fast (and thus considering) the traditions which have been taught to it.

This does not mean that Christians lack the right of private judgement, of course -- each person must work out his or her own salvation with fear and trembling, as Paul noted. But it does begin to suggest that each Christian should establish a relationship to the Church as that of a student to a teacher. Right of private judgement, again, exists, as does the right of each person to interpret out of Scripture for him or herself. But that interpretation must ultimately be in harmony with the teaching and interpretation of that which is the pillar and bulwark of God's truth, as expressed through God's Word: the Church.

And where private interpretation leads to a conclusion different than that of the Church that is disharmonious with the teaching of the Church, the Christian should, in humility, submit to the learned judgement of the Church and its interpretation of Scripture, rather than forging out in his or her own new direction. That is, again, beacause it is the Church -- and not the individual -- who is the bulwark of truth, and the means by which the wisdom of God is to be brought to the world.

And as to what my correspondent has said, it must be noted that no Christian can be both Christian and free of any tradition. The Bible itself is a tradition, in the sense that it was canonized in 390 AD. The very canon of Scripture is the tradition in this case; while there are differences concerning whether or not the Deuterocanonical books should be included in the canon or not, the point is that each Christian acknowledges a canon of Scripture that has been handed down by tradition, rather than elected by the individual, private judgement of each successive believer.

Moreover, things like sola fide and sola scriptura are traditions, and so anyone who adheres to such beliefs is following in a tradition handed down from Luther. Indeed, such a person gives a great deal of authority to those traditions, as they form a part of the core of that person's understanding of salvation in Christ, a key aspect of Christian faith.

I weep for Christians who are so deluded as to think that to be Christian means to be free of any form of tradition, for it is by tradition that we -- the faithful alive today -- are connected in spirit with those who have gone before us in Christ. If we eschew tradition and its authority, we cut ourselves off from those who went before us as believers in Christ. And in so doing, we are rather like the ship which burns the port it leaves, and then casts off its maps and compass as well.

We become, in essence, blinded by our own hand when we reject the traditions of the faith. And we likewise set ourselves against the Bible itself.