Again! Can Catholics never read things in context? If we read both verse 14 and 15 "I am writing you these instructions so that ... you will know how people ought to conduct themselves in God’s household".
How in the world can you promote a verse as proof that truth in found in the church when the verse states that the written letter is instruction for conduct in the church?
I agree the truth is found in the true church, but how do you get from "follow what I write" to "follow what the church says"? They are opposed unless the church follows the written word. And this is the meaning of sola scriptura. The scripture is the rule. The church is to follow the rule. The church is not the rule. The church is not the true church unless it follows the rule.
James 2: 17-26 ...A stern warning from Saint James
17
So also faith of itself, if it does not have works, is dead.
18
Indeed someone might say, “You have faith and I have works.” Demonstrate your faith to me without works, and I will demonstrate my faith to you from my works.
19
You believe that God is one. You do well. Even the demons believe that and tremble.
20
Do you want proof, you ignoramus, that faith without works is useless?
21
Was not Abraham our father justified by works when he offered his son Isaac upon the altar?
22
You see that faith was active along with his works, and faith was completed by the works.
23
Thus the scripture was fulfilled that says, “Abraham believed God, and it was credited to him as righteousness,” and he was called “the friend of God.”
24
See how a person is justified by works and not by faith alone.
25
And in the same way, was not Rahab the harlot also justified by works when she welcomed the messengers and sent them out by a different route?
26
For just as a body without a spirit is dead, so also faith without works is dead.
You belive in Scripture, correct?
Then why don't you believe this?
John 21: (We'll be using the KJV today to keep things on even footing): "And there are also many other things which Jesus did, the which, if they should be written every one, I suppose that even the world itself could not contain the books that should be written. Amen."
The Bible Itself declares that it doesn't contain everything.
Its that special interpretive sauce of Catholic interpretation. Apply liberally to make the text mean what you need it to mean.