The northern kingdom went into exile when Hezekiah was king of the southern kingdom. Hezekiah didn’t follow the example of the kings of the northern kingdom. He followed David’s example of worshipping only God. He led the people of the southern kingdom to do the same.
When the Assyrian army surrounded Jerusalem, the army commander made fun of God. Hezekiah asked the prophet Isaiah for advice. Hezekiah also trusted God. He prayed (prayer) to God and asked God to save Jerusalem. This would show the Assyrian army that Israel’s God is the one and only true God.
God promised to save Jerusalem from Assyria. This was how God showed he was faithful to his covenant with David. Hezekiah became ill. Isaiah announced that he would die. Hezekiah prayed again and wept before God. God had mercy on Hezekiah and allowed him to continue living.
After Babylonian messengers visited Hezekiah, Isaiah announced what would happen later. Babylon would become a powerful kingdom. It would cause terrible trouble for the southern kingdom.