I will bring one more plague on Pharaoh and on Egypt. After that, he will let you go from here

Exodus 10:20-11:10

So Moses stretched out his hand toward the sky, and total darkness covered all Egypt for three days. No one could see anyone else or move about for three days. Yet all the Israelites had light in the places where they lived. 

But Moses said, “You must allow us to have sacrifices and burnt offerings to present to the Lord our God. Our livestock too must go with us; not a hoof is to be left behind. We have to use some of them in worshiping the Lord our God, and until we get there we will not know what we are to use to worship the Lord.”

Pharaoh said to Moses, “Get out of my sight! Make sure you do not appear before me again! The day you see my face you will die.” “Just as you say,” Moses replied. “I will never appear before you again.”

Now the Lord had said to Moses, “I will bring one more plague on Pharaoh and on Egypt. After that, he will let you go from here, and when he does, he will drive you out completely. Tell the people that men and women alike are to ask their neighbors for articles of silver and gold.”

So Moses said, “This is what the Lord says: ‘About midnight I will go throughout Egypt. Every firstborn son in Egypt will die, from the firstborn son of Pharaoh, who sits on the throne, to the firstborn son of the female slave, who is at her hand mill, and all the firstborn of the cattle as well. There will be loud wailing throughout Egypt—worse than there has ever been or ever will be again. But among the Israelites not a dog will bark at any person or animal.’ Then you will know that the Lord makes a distinction between Egypt and Israel.

However it happened, this was no mere 'chance' - God was demonstrating his absolute control. He distinguished between his people and the Egyptians. He controlled the plague. He announced the timing of each and could call a halt at any time in answer to prayer.

Preliminaries are over: God's warning of 4:22-23 is about to be realized. This is the end of the road for Pharaoh and his people. But for Israel, it is the beginning. This is a day to remember down the ages: when God dealt death to the firstborn sons of Egypt, but spared and freed his own people.

Why?

After the dark plague is the firstborn son in Egypt will die. Then all Egyptians will ask Israelite to go away from them.

Israelite will know that God's word never fails and  God has distinguished them from Egyptians.

Three days' darkness is unusual, for the solar eclipse is happening only a few minutes. It is not natural predominance, it is the work of the Lord.

Then you will know that the Lord makes a distinction between Egypt and Israel, it is proved that God's love and justice is showing before men.

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黑暗之災與殺長子之災相關。

黑暗之災是對付太陽神，針對法老，法老自稱是太陽之子。黑暗帶給人心理的傷害、有恐懼感。三天之久，人不敢出門。埃及人感到他們的太陽神到那裏去了。有人說是沙塵暴，怎麼會歌珊地有陽光。

法老還是沒有誠意讓以色列人走。所有咒詛基督徒的便是咒詛自己。法老說的就是指他自己。

我們是否準備了沒有，要離開這地，到永恆的應許之地。

埃及人、官員都看摩西比法老大。

預告殺長子之災。家是一個人最後的堡壘，最後也要被摧毀。神給法老機會悔改，但是一直不悔改。我們也是否像法老一樣。

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How?

The blessing and plagues are in the hands of the Lord, only those who obey God's command could be blessed.