Isaiah 7:2

When Ahaz ("the house of David" of all people!) heard that Syria had moved its army into the Northern Kingdom (Ephraim) and had settled down there, he and his people shook with fear. The date of this attack was probably between 736 and 734 B.C. This prophecy of Isaiah is dateable to 734 B.C. Ahaz had previously suffered defeat at the hands of both these enemies (2 Chronicles 28:5-8). Edom and Philistia were also threatening Judah at this time (2 Chronicles 28:17-18). What Ahaz would do would affect the future of his dynasty, the house of David.