If you are having trouble reading Isaiah, this overview may help you see how things are connected to each other. I’ve tried to avoid interpretation in this overview, sticking merely to restatement and description as much as possible.
1-2: The Lord tells the prophet to comfort his people and tell them that the exile is about to end.
3-5: A highway will be prepared on which the exiles can travel when they return to see the glory of the Lord.
6-8: Though the things of the world are transient, God’s promises are eternal.
9-11: The prophet is told to announce from the mountain tops the return of the exiles, led by the Lord
12-17: The incomparable power of the Lord.
18-20: The Lord cannot be compared to an idol of any kind.
21-26: The incomparable power of the Lord.
27-31: The prophet addresses Israel as a whole reminding them that the Lord has the power to save them and will do so.