Chapter 9 continues the description of the plagues upon Egypt. Specifically, it covers plagues five (disease), six(boils), and seven (hail).
Chapter 9 can be outlined as follows:
The fifth plague is the second one in the second cycle of the nine plagues. It consisted of some kind of disease that affected livestock, not people. As in the second plague of the first cycle, there is no specific time that Moses was to confront Pharaoh. Like before, he was told to relay the message of the LORD along with a warning if Pharaoh disobeyed.
The sixth plague (verses 8 – 12) is the last one in the second cycle of the nine plagues. It comes without warning, like the third plague. It involved inflicting painful boils on humans and livestock. Even the magicians were afflicted by the boils and were unable to control the plague. But the result was as the LORD had predicted – Pharaoh’s heart was hardened by the LORD and he did not let the Israelites go out of the land to worship the LORD God.
The seventh plague (verses 13 – 35) is the first one in the third cycle of the first nine plagues. The plagues in this cycle are more severe than the previous ones. Similar to plagues 1 and 4, Moses was commanded to confront Pharaoh in the morning. In this plague, however, the message Moses was to convey to Pharaoh was longer and provided more detail as to the LORD’s dealings with him. The LORD told Pharaoh that the plagues were designed to show him and his people that the God of the Hebrews was unique, that He was incomparable, and that disobeying Him would have terrible consequences.