When it was reported to the house of David that Aram was in league with Ephraim, the hearts of Ahaz and his people trembled like trees in the forest shaken by the wind.
2. And it was told the house of David. He does not mean that, at the very time when the two kings were approaching to the city, the king received intelligence about the league; for it would not have been safe for Ahaz to go out, when the invading army was spread over the country; but before they had collected their forces, it is said that King Ahaz trembled.
The prophet Isaiah had his commission renewed in the year that king Uzziah died, Isa 6:1. Jotham his son reigned, and reigned well, sixteen years. All that time, no doubt, Isaiah prophesied as he was commanded, and yet we have not in this book any of his prophecies dated in the reign of Jotham; but this, which is put first, was in the days of Ahaz the son of Jotham.
Commenting on Isaiah 7:1-9
And it was told the house of David,.... Ahaz, and his family, the princes of the blood, his court and counsellors; who had intelligence of the designs and preparations of the Syrians and Israelites against them: saying, Syria is confederate with Ephraim; the ten tribes; or the kingdom and king of Israel.