John Wesley on Isaiah 7:2

David - Ahaz, and his relations. He calls them the house of David, to intimate that the following comfortable message was sent to Ahaz, not for his own sake, but for the sake of his worthy progenitor David. Ephraim - The kingdom of the ten tribes, commonly called Ephraim, because that was the most numerous of all. Moved - With fear, arising from a consciousness of their own guilt, and their enemies strength.