Since the history of creation is one seamless garment, as with the scriptures, it cannot be understood in pieces, but as a whole. An important part of that garment is the prophets. In many cases, the prophets themselves could not have understood the message they delivered, since all prophecy was directed, in some fashion, toward Jesus. Thus, His arrival fulfilled - fleshed out - all prophecy.
But, there is also a more narrow scriptural aspect of all this. I speak of the few centuries immediately preceding the Incarnation. The concepts of resurrection and eternal life preceded Jesus in the writings of the Deuterocanonical authors. And, the timing of their writings is key. They were writings that were anticipatory of the long-awaited Messiah.
Timing is everything. Post exile, something big was to occur. Apocalyptic writings such as Daniel spoke of it. The Temple in Jerusalem had been defiled and pagan altars set up within it. Judaism was banned, under the penalty of death. Rather than being just another chronicle of Hebrew suffering, this time frame and its events pointed to great things that were about to occur.
The Lord inspired various writers from he who wrote Daniel to the author of 2 Maccabees to introduce a startling new concept to the Hebrew consciousness: resurrection from death and life eternal. David had hinted at it in Psalm 15.
Judas Maccabeus freed Israel from Seleucid domination and restored both the Temple and the practice of Judaism. Now, once can argue that this was 175 or so years before Christ, but that is to think as man does and not as God does.
We both know that God lives outside of time, and on a creation time-line, the Temple was restored just in time for the Messiah to be presented to God in it. That Messiah then went on to teach of the, you guessed it, resurrection and eternal life.
The Deuterocanonical books (including Daniel), all written in the immediate pre-Christian era, taught what Christ would soon thereafter teach, and so were prophetic in their own regard.
But, the prophets, the Deuterocanonical authors, indeed all that had occurred, was setting the stage for the final, new and everlasting Covenant.