1. Hezekiah's pride (1-4)
After relief from national and personal crises, Hezekiah may have felt on top of the world. At that time, envoys from Babylon came with gifts and praise. This was a test from the LORD (2Chr 32:21) to reveal all the heart of the king. He happily received them, showing them everything in his kingdom. He may feel an alliance with them was good. Isaiah's questions revealed the senselessness of the king's action, but Hezekiah seemed so proud of what he had done.
2. God opposes the proud (5-8)
Isaiah then gave Hezekiah God's words. The result of this foolish act planted the seeds of Babylon's later invasion and conquering of Judah. At times of success, it is natural to become proud. Like Hezekiah, we need to hear the word of the Lord and be restored to our right mind. His initial response was proud (8), but later he repented (2Chr 32:26), and God's wrath was avoided.