Exodus 8:31 tells us that God did exactly what Moses asked. Moses prayed, and the LORD removed the swarms of flies from Pharaoh, his servants, and all the people of Egypt, leaving not a single one behind. The verse is a short report of an answered prayer, and it shows God keeping his word in the middle of a contest with a stubborn king. Moses speaks here as the LORD’s mediator, and the words belong to the narrator of the book of Exodus, traditionally attributed to Moses himself.
The LORD did according to the word of Moses, and he removed the swarms of flies from Pharaoh, from his servants, and from his people. There remained not one.
Exodus 8:31 (WEB)
What Exodus 8:31 Means
The verse begins with “The LORD did according to the word of Moses.” The key idea is that God acts in response to the prayer of his servant. Moses had told Pharaoh he would pray and that the flies would leave the next day, and the verse confirms that the timing and the outcome matched his word. God is not reacting to chance or to Pharaoh’s mood. He is answering a request made in faith and in line with his purposes.
The phrase “removed the swarms of flies” describes the plague being lifted completely. The narrator then adds, “There remained not one.” That detail matters, because it shows the relief was total and not partial. The verse does not promise that every prayer will end in the same kind of clean result, and it does not describe God as a tool we can use on demand. What it shows is a God who hears his servant and who has the power to undo a whole plague in a single day.
The Context of Exodus 8:31
Exodus belongs to the Torah, the opening section of the Hebrew Scriptures, and it tells the story of Israel’s deliverance from slavery in Egypt. The book is written for a people who had lived under Egyptian rule and needed to understand who the LORD was and what he was doing for them. The plague of flies is the fourth in a series, and the surrounding verses show Pharaoh making a promise to let the people go if the flies are removed, then going back on his word.
Read in that setting, Exodus 8:31 is not just about flies. Verse 32 says Pharaoh hardened his heart and refused to release the people. The swift answer to Moses’ prayer stands in sharp contrast to Pharaoh’s stubbornness. God keeps his word while Pharaoh breaks his, and the verse reminds the reader that the struggle is between the LORD and a ruler who will not listen.
Key Phrases in Exodus 8:31
Psalm 145:18
The LORD is near to all those who call on him, to all who call on him in truth.
(WEB)
This psalm affirms that the LORD is near to all who call on him in truth. It deepens the picture in Exodus 8:31 by showing that God’s answering of prayer is part of his nearness and faithfulness to those who seek him.
James 5:16
Confess your offenses to one another, and pray for one another, that you may be healed. The insistent prayer of a righteous person is powerfully effective.
(WEB)
James links the prayer of a righteous person with powerful results, much like Moses’ intercession for Pharaoh’s land. It helps the reader see that the earnest prayer of a faithful servant has real effect in the world God governs.
A Short Prayer From Exodus 8:31
Lord, you hear the prayers of those who call on you, and you keep your word even when the people around us do not. Thank you for the way you answered Moses and removed the flies completely, leaving not one behind. Help me to bring my requests to you with the same trust, believing that you act in wisdom and at the right time. Where I feel stuck or powerless, remind me that nothing is beyond your power. Amen.
