If Scripture isn't from us, then where does it come from? Peter points us to the Spirit's active role.
The phrase 'someone's own interpretation' highlights the human element Peter is distancing prophecy from. It’s not about human reasoning or personal insight. This is contrasted with the true source: the Holy Spirit. When the prophets spoke, they were carried along by the Spirit. Think of it like a powerful current guiding a boat. The boat is still there, the people are in it, but the direction and power are coming from the river's flow. In the same way, the prophets were human beings, but the message they delivered was ultimately from God, conveyed through the Spirit's guidance. This ensures the reliability and authority of Scripture, as it is God communicating His truth, not a collection of human opinions.