That same writing, which was breathed by God Himself, is read and understood by us but interpreted by the Holy Spirit, who authored the original document The Holy Spirit, not the Church, is infallible
Would the infallible Holy Spirit interpret the same scripture in very different ways?
If you and I say the Holy spirit interprets a particular passage in different ways, which is then to become the Christian faith?
Now, if for example you and I disagree upon the interpretation of Scripture, that means one of three possible things has happened.
1. You have incorrectly interpreted Scripture. 2. I have incorrectly interpreted Scripture. 3. We both have incorrectly interpreted Scripture.
The way we solve this issue is, as Scripture instructs, to interpret Scripture with Scripture. Whichever of our ideas agrees with the rest of Scripture is the one which is right. Tradition has no place here.