There was a time when those seeking God had only the Law & the Testimony. Consider that the Judges had only the Law, only Moses. David had the Law & the Judges. Solomon had the Law & David’s Psalms. The Kings had the Law & gradually the annals of the kings, the histories. And so the prophets, like Isaiah, had the Law & the Testimony.
The first century students of God’s ways then had the Law, the Writings and the Prophets. That is, the Torah, the Neviim and the Ketuvim, the TNK, today called the Tanakh, the Jewish Bible, and what we call our Old Testament.
Imagine for a moment as you read that you are living in the times of those scriptures, whether of the kings or of Isaiah, the prophet. All you have are the Law or the Law and the annals or the Law & the Testimony, or then all the scriptures. And indeed, we have received so much more.
And Shaphan the scribe shewed the king, saying, Hilkiah the priest hath delivered me a book. And Shaphan read it before the king. And it came to pass, when the king had heard the words of the book of the law, that he rent his clothes. And the king commanded Hilkiah the priest, and Ahikam the son of Shaphan, and Achbor the son of Michaiah, and Shaphan the scribe, and Asaiah a servant of the king’s, saying, Go ye, enquire of the Lord for me, and for the people, and for all Judah, concerning the words of this book that is found: for great is the wrath of the Lord that is kindled against us, because our fathers have not hearkened unto the words of this book, to do according unto all that which is written concerning us. 2 Kings 22:10-13
On that night could not the king sleep, and he commanded to bring the book of records of the chronicles; and they were read before the king. Esther 6:1
To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.
Isaiah 8:20
Then Jeremiah called Baruch the son of Neriah: and Baruch wrote from the mouth of Jeremiah all the words of the Lord , which he had spoken unto him, upon a roll of a book. And it came to pass, that when Jehudi had read three or four leaves, he cut it with the penknife, and cast it into the fire that was on the hearth, until all the roll was consumed in the fire that was on the hearth. Jeremiah 36:4, 23
In the first year of his reign I Daniel understood by books the number of the years, whereof the word of the Lord came to Jeremiah the prophet, that he would accomplish seventy years in the desolations of Jerusalem. Daniel 9:2
When Herod the king had heard these things, he was troubled, and all Jerusalem with him. And when he had gathered all the chief priests and scribes of the people together, he demanded of them where Christ should be born. And they said unto him, In Bethlehem of Judaea: for thus it is written by the prophet, And thou Bethlehem, in the land of Juda, art not the least among the princes of Juda: for out of thee shall come a Governor, that shall rule my people Israel. Matthew 2:3-6
And he said unto them, These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in the prophets, and in the psalms, concerning me. Luke 24:44
Of which salvation the prophets have enquired and searched diligently, who prophesied of the grace that should come unto you: Searching what, or what manner of time the Spirit of Christ which was in them did signify, when it testified beforehand the sufferings of Christ, and the glory that should follow. Unto whom it was revealed, that not unto themselves, but unto us they did minister the things, which are now reported unto you by them that have preached the gospel unto you with the Holy Ghost sent down from heaven; which things the angels desire to look into. 1 Peter 1:10-12
Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me. And ye will not come to me, that ye might have life. John 5:39-40
In the beginning was the Word, and the Word was with God, and the Word was God. In him was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not. He came unto his own, and his own received him not. But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name: John 1:1, 4-5, 11-12