So was an Egyptian king (pharaoh) to whom Hosea, the last king of Israel, sent messengers seeking an alliance against Assyria. This alliance failed, and Hosea's rebellion against Assyria led to the siege of Samaria and the fall of the Northern Kingdom. So is mentioned only once in the Bible, but his role is significant as background for Israel's final downfall.
Key events
Hosea's Alliance Attempt with So
Israel's King Hosea sent messengers to So, the king of Egypt, seeking military support against Assyria. This was a desperate attempt to break free from Assyrian domination.
4But the king of Assyria uncovered a conspiracy: Hoshea had sent messengers to So, king of Egypt, and had not paid the tribute to the king of Assyria as he had done year by year. So the king of Assyria seized him and bound him in prison.
4But the king of Assyria uncovered a conspiracy: Hoshea had sent messengers to So, king of Egypt, and had not paid the tribute to the king of Assyria as he had done year by year. So the king of Assyria seized him and bound him in prison.
After a three-year siege, Samaria fell in 722 BC. The population of the Northern Kingdom was deported to Assyria, marking the end of the northern kingdom of Israel.
6In the ninth year of Hoshea the king of Assyria captured Samaria and deported Israel to Assyria, settling them in Halah, on the Habor, the river of Gozan, and in the cities of the Medes.
The Bible explains that Israel's fall was due to the people's sin and idolatry. The alliance with Egypt instead of trusting in God was part of this apostasy.
7All this happened because the Israelites had sinned against the LORD their God, who had brought them up out of the land of Egypt, out from under the hand of Pharaoh king of Egypt. They feared other gods
9The Israelites secretly did things against the LORD their God that were not right. They built themselves high places in all their towns, from watchtower to fortified city.
11There, on every high place, they burned incense, just like the nations whom the LORD had carried into exile before them. They did wicked things that provoked the LORD to anger.
The prophet Isaiah repeatedly warned against relying on Egypt for military help instead of trusting in the Lord. So's inability to help Israel confirmed these warnings.
1Woe to those who go down to Egypt for help, who rely on horses, who trust in chariots because they are many and in horsemen because they are strong — but who do not look to the Holy One of Israel or seek the LORD.
2Yet he too is wise, and he brings disaster; he does not take back his words. He will rise against the house of evildoers and against the help of those who do wrong.
3The Egyptians are only human, not God; their horses are flesh, not spirit. When the LORD stretches out his hand, the helper will stumble and the one helped will fall, and both will perish together.