King Hezekiah's miraculous recovery to live another 15 years. The sundial going back ten degrees - possibly equal to 20 minutes. Envoys from Babylon: King Merodach-baladan off Babylon sent greetings to Hezekiah and he himself reigned from 721 - 710 B.C. and also for 9 months in 703 B.C. (He was different from another Babylonian king - Evil Merodach - who reigned from 561-560 B.C. and was assassinated by Neriglissar. I got mixed up in the podcast with those two kings). Isaiah's prophecy of future doom for the kingdom of Judah.