Just as the first plague set the tone for the first three plagues, the fourth plague gives the theme of the second set of plagues. Back in 7:17, God said, By this you shall know that I am Yahweh. Now, in the 4th plague, But on that day I will set apart the land of Goshen, … that you may know that I am the LORD in the midst of the earth. When Egypt is affected and Goshen isn’t, God will show convincingly that he, Yahweh, Israel’s God, is the one in the midst of the land of Egypt, performing these wonders of judgment. Thereby the 4th – 6thplagues take God’s purpose in the first three plagues and amplify it. Still, the foundational purpose of the plagues is that men know that Yahweh is God. Since he is God, we ought to love and obey him. Let’s look more closely at these plagues and see how God glorifies himself in them.
Moses’s three questions in chapter 4 expose Moses’s fear and unbelief. Yet for each of Moses’s three objections, God patiently brings himself back into Moses’s thoughts. Moses was very hesitant to obey God’s call. All of us can be the same way. The point is this, we must submit to God’s will. In big things, in little things, in hard things, and in difficult things, we must lovingly submit to the will of God. In this passage, there are three reasons why we should submit to God.
The LORD has sovereign power and authority over all things. Yahweh is in control over everything that happens in the book of Exodus. That is because the Lord is over everything that happens, period. This passage is not only about what is about to happen, it is also about a Sovereign God who foretells what will certainly happen because he decreed those events. In light of this truth, the point of this morning’s message is we should trust our sovereign God who does whatever he decrees. Why should we trust God?