There are nearly ten thousand flavors of Christianity today. When we add to the mix the churches that did not survive to the present date, the number of churches are even higher. What criteria should a person use to determine the true church? I define the true church as a church that teaches an accurate teaching of Jesus Christ. If you know of such a church, please explain in detail why that church is the true church.
The true church should be able to visibly trace its teachings and lineage back to the Apostles of Christ and the students/descendants of the Apostles. Its faith and teaching must be the same as when Christianity first started.
Naturally, everyone and their mother will claim their own denomination to be the original church. However, if they're a Protestant, many of their distinguishing beliefs (such as the 5 Solas, Calvin's 5 Points, etc) originated in the 1500's--well after the Apostles. So we're forced to conclude that none of the Protestant denominations are the original church, but derivatives of it. Roman Catholicism has likewise changed drastically over the past millennium, and many beliefs that were once denied vehemently by Catholics are now taken to be cornerstones of the Catholic Faith--namely,
Papal infallibility and the
Immaculate Conception.
So that gets rid of thousands and thousands of Christian denominations right there that can claim to being the true church. Now your two options are this: To believe that the WHOLE ENTIRE Church fell away some time after the death of the Apostles, or even while the Apostles were still living, therefore meaning that Jesus' disciples failed to continue on their message. And then we had to wait for over a thousand years for Jesus to decide to restore Christianity. Such groups making these claims are the Jehovah's Witnesses and the Mormons.
The other option is to look outside the typical realm of Western Christianity so familiar to us, and see if pure, untarnished Christianity survived in the homeland--in Greece, Palestine, Syria and Asia Minor, among the Christians of Jerusalem, Caesarea, Antioch, Ephesus, Colossus, Corinth, Myra, and other areas in the Bible where the first Christian churches were.
If you look there, you will find a form of Christianity called "Orthodox Christianity". Orthodox Christianity consists of two communions of churches that are kept apart by historical awkwardness and some misunderstanding: The Eastern Orthodox (found mostly in Egypt, the Middle East, Greece, the Balkan Peninsula, Eastern Europe and Russia, and is gaining ground in the Western world) and the Oriental Orthodox (found in Egypt, Ethiopia, Syria, Armenia and India). Both recognize each other as truly Orthodox and Apostolic (extremists notwithstanding) and there has been great progress towards the ultimate goal of fully reuniting both Churches.
Both Orthodox Churches show remarkable adherence to the Faith of the Apostles, and they take great care to keep the faith unchanged. And it shows in their history and writings. If you were to ask me, I would say that the Orthodox Church (both Eastern and Oriental together) is the true Church
the holy bible, which is made up of the following canonized writings:
Inspired Hebrew scriptures (OT)
 1 Genesis
 2 Exodus
 3 Leviticus
 4 Numbers
 5 Deuteronomy
 6 Joshua
 7 Judges
 8 Ruth
 9 1 Samuel
10 2 Samuel
11 1 Kings
12 2 Kings
13 1 Chronicles
14 2 Chronicles
15 Ezra
16 Nehemiah
17 Esther
18 Job
19 Psalms
20 Proverbs
21 Ecclesiastes
22 The Song of Solomon
23 Isaiah
24 Jeremiah
25 Lamentations
26 Ezekiel
27 Daniel
28 Hosea
29 Joel
30 Amos
31 Obadiah
32 Jonah
33 Micah
34 Nahum
35 Habakkuk
36 Zephaniah
37 Haggai
38 Zechariah
39 Malachi
anything besides these writings is known as 'apocryphal' ... the collection of writings not written by Gods appointed prophets or servants.
Can you explain why Jesus and the Apostles and the biblical authors used the Septuagint, which has more books than what your OT lists?