From Genesis to Revelation, the Scriptures reveal God’s redemptive plan in Jesus Christ. The writings of Moses reveal God’s holy nature, God’s laws and God’s redemptive plan of atonement for human sin. The historical writings reveal the progressive revelation of God’s redemptive plan in calling Abraham and through him, a family, then a nation to be his holy people, to be a light of revelation to the other nations. Alongside the Law and the Historical writings, the Psalms are the hymnbook of God’s people. But to authenticate these writings as truly the Word of God, from eternity, God foretold and revealed events in space time history before they occurred.
“If what a prophet proclaims in the name of the LORD does not take place or come true, that is a message the LORD has not spoken. That prophet has spoken presumptuously. No one should be alarmed.” (Deuteronomy 18:22)
The Apostle Peter adds a New Testament perspective:
“We also have the prophetic message as something completely reliable, and you will do well to pay attention to it, as to a light shining in a dark place, until the day dawns and the morning star rises in your hearts. Above all, you must understand that no prophecy of Scripture came about by the prophet’s own interpretation of things. For prophecy never had its origin in the human will, but prophets, though human, spoke from God as they were carried along by the Holy Spirit.” (2 Peter 1:19-21)
The prophets therefore fulfilled a unique role in corroborating the giving of divine revelation in a way that was verifiable and unmistakable. The Place of Prophecy: Authenticating Divine Scripture.
Read more here