Zephaniah
Repentance was the only way to avert disaster.
Habakkuk
That the greatest defiance of the truly sovereign God was to idolize attributes and achievements of Humans.
Jeremiah
That the new covenant would be written on the hearts of men and the law of God would be internalized.
Nahum
His message brought no repentance, due to Nineveh’s time being out. It was a message of not leaving the guilty unpunished
Ezekiel
To recognize Yahweh as the sovereign God/ savior of Isreal.
Obadiah
The justice of God against Edom’s sin of enmity and greed (not showing compassion)