A voice will say; this is the way, follow it

Isaiah 30:1-14 The Lord says; woe to Israel, a race of rebels who refuse His Laws. They ask for preachers to ‘give us smooth words and illusions’.
Isaiah 30:15 These are the words of the Lord; In calm detachment lies your safety, your strength in quiet trust.
Isaiah 30:16-17 But you would have none of it, therefore you will be put to flight.
Isaiah 30:18 Yet the Lord is waiting to show you His favour and compassion, for He is a God of justice. Happy are all who wait for Him! [Luke 12:37]
Isaiah 30:19-22 People of Zion, weep no more. The Lord will answer you when you call for help. He gives you adversity and affliction now, but your teachers will no longer be hidden from you, you will see them with your own eyes. If you stray from the right path, you will hear a voice behind you saying- ‘this is the Way, follow it’. You will loath your images and will treat your idols [sorcery, false religions, materialism, etc] like filth. [Hosea 14:8 & Ezekiel 11:18]
Isaiah 30:23-24 The Lord will give rain and the Land will produce rich crops. Your livestock will prosper. [Isaiah 41:17-19 & Ezekiel 34:14-16]

Isaiah 30:25-26 On the Day of slaughter, when fortresses fall, streams of water will flow from every hill. The moon will shine like the sun and sunlight will be seven times brighter on the Day the Lord heals the wounds of His people. [Isa 63:4]
Isaiah 30:27-28 See the Lord Himself comes from afar, with anger and wrath, in dense clouds of smoke. His breath is a rushing torrent, He shakes the nations in a sieve of destruction. [Ezekiel 30:2-3 & Habakkuk 3:12]

Isaiah 30:29 But for you there will be songs and gladness of heart as you march to music, on the way to the Mountain of the Lord. [Zech. 10:10-12, Psalm 68:7-12]
Isaiah 30:30-33 Then the Lord will make His voice heard in majesty and reveal His arm descending in fierce anger, with devouring flames, thunder and hail. [Heb 10:27]
For at His voice, Assyria’s strength fails, His punishing Rod strikes them down. A fire pit is prepared by Jerusalem, ready for the Lord to set it ablaze with His breath, like a stream of burning sulphur.
Ref, REB some verses abridged

My comments ; Verse 10 is appropriate for our days, as false religions, prosperity theology, etc. are promulgated everywhere.
Verse 19-24 Are for the period after His people, all Israel, are resettled in the Land. They will have God given leaders and teachers to guide them until Jesus Returns.
Verse 25-28 & 30-33 The Lords Day of vengeance, the fire judgement on His enemies – the Day His people are healed and redeemed.
Verse 29 Then they gather into the Promised Land.