The [mournful, inspired] oracle ([a]a burden to be carried) concerning Babylon which Isaiah the son of Amoz saw [in a prophetic vision] – Isaiah 13:1
The book of Isaiah has many chapters that state an oracle or prophecy to be an inspired piece given to them and delivered through them by the Holy Spirit.
I always wonder if they received their words the same way those in the New Testament did or were they delivered in a different way or received in a different setting.
The prophecies of the Old Testament had smatterings of statements about the coming of Jesus and they were so precise and so clearly stated – these had to be received and delivered by the prophets very specifically – I am sure they wondered even if they knew what they were talking about. Maybe at times they were tempted to remove a paragraph here and there just to make sense of the flow of conversation.
Inspiration is what fueled a prophet’s confidence. It would not surprise me today, and I have heard it from time to time, that we do not want to be inspired by the Holy Spirit because we do not want to be asked to do something. Something that we will probably want to say no to. Inspiration is great, but without obedience the message stays in the dark until God finds another who is willing to yield and deliver it.