In the moment, circumstances seemed dire indeed, his people captured, his towns looted, his capital city nearly under siege. But the prophet Isaiah reassured King Ahaz that God was faithful.
All of us deal with some kind of deep-seated fear. It helps to keep that in mind when reading Isaiah 7, for it concerns a king with deep-seated, and legitimate fear.
There are times when we absolutely know the voice of God has spoken, but...we're not sure what to do about it.