What does Isaiah 7:2 mean?
Ahaz, king of Judah, and the "house of David" are terrified. The phrase "house of David" refers to Jerusalem. It could refer to the king's court or the people of Jerusalem and Judah in general. Isaiah writes poetically that their hearts are full of fear. They are not feeling strong for what lies ahead.Why are they so afraid? They have learned that Syria and Ephraim are in league together. Ephraim is the nation of the northern ten tribes of Israel Syria is the nation just north of Israel, and it's capital is Damascus. The capital of Ephraim is in Samaria. The two nations have not just become allies. They have come south to attack Judah to get it out of the way before Assyria comes from the east with its massive armies to attack their nations.
The king of Judah has already made it clear he will not stand with Syria and Israel against the Assyrians. In fact, it will eventually be revealed he has made an alliance with Assyria (2 Kings 16:7–9). The kings of Syria and Israel hope to defeat him and put their own king on Judah's throne, someone who they can influence.
It is likely that Israel and Syria have already captured or killed tens of thousands of the people of Judah (2 Chronicles 28) by this point. They are making their way to Jerusalem, the well-defended capital of Judah. Because of its location and its walls, their plan would be to put the city under siege and starve Ahaz and his people out.