[HarleyD]

The Apostles will teach the world (Jn 17:18f)

Joh 17:18 "As You sent Me into the world, I also have sent them into the world. Joh 17:19 "For their sakes I sanctify Myself, that they themselves also may be sanctified in truth. Joh 17:20 "I do not ask on behalf of these alone, but for those also who believe in Me through their word;

Peter will convert his brethren (Lk 22:32)

Brethren refers to the Jews. Paul's mission was to the Gentiles.

Gal 2:8 (for He who effectually worked for Peter in his apostleship to the circumcised effectually worked for me also to the Gentiles),

the Church will be one (Jn 17:22)

No argument, but in my Bible "Church" is spelled "church". And, quite coincidentally, so is it in my Catholic version.

together with the Tradition (2 Thess. 2:14)

2Th 2:15 (2:14) Therefore, brethren, stand fast: and hold the traditions, which you have learned, whether by word or by our epistle.

Paul states we hold fast the traditions through the preaching of the word or the epistle (scripture). We don't learn tradition through men.

Compare:

Col 2:8 Beware lest any man cheat you by philosophy and vain deceit: according to the tradition of men according to the elements of the world and not according to Christ.

No scripture can embrace the knowledge of Christ in full

Joh 20:30 Therefore many other signs Jesus also performed in the presence of the disciples, which are not written in this book;
Joh 20:31 but these have been written so that you may believe that Jesus is the Christ, the Son of God; and that believing you may have life in His name.

I always get nervous when Catholics post references without any scripture.

[Dr. Eckleburg]

AMEN! Great post, Harley.

[P-Marlowe]

I always get nervous when Catholics post references without any scripture.

No kidding.

[annalex]

Brethren refers to the Jews

This is your naked opinion only. There is nothing in context to suggest that.

"Church" is spelled "church".

Capitalization in Bibles generally differs form lay discourse. Pronouns referring to Christ are not capitalized either.

We don't learn tradition through men

Not what St. Paul said in 2Th 2:15, as you helpfully quoted. It is true, of course, that not all traditions of all men are helpful. This is why one should avoid traditions of Messrs. Luther and the rest.

Joh 20:30

Fine, the gospel is written "so that we may believe". It is not a claim of completeness, as Evangelist St. John himself stated in the next chapter. If there existed such a claim, sola scriptura would have been proven from scripture, but of course we both know that it cannot be proven.

[Kolokotronis]

"I always get nervous when Catholics post references without any scripture."

Why? I don't! :)