This section of the book focuses on the Northern Kingdom, and it ties in with the section immediately preceding concerning the Messiah (9:2-7). It explains why Ephraim's plans against Judah would fail. They would not fail because of Ahaz's alliance with Assyria but because God would frustrate them. Ephraim would not go into captivity because she lacked sufficient military strength but because she failed to measure up to the standard God had set for her. This standard lay in the area of moral rectitude rather than military resources.
This section, a poem, consists of four strophes each ending with the refrain, "In spite of all this His anger does not turn away and His hand is still stretched out"(vv. 12, 17, 21; 10:4). The progression of thought is from pride to flawed leadership to selfishness to social injustice.