Hos 1:6-7 She conceived again and bore a daughter. And the Lord said to him, “Call her name No Mercy [Hebrew: Lo-ruhama], for I will no more have mercy on the house of Israel, to forgive them at all. But I will have mercy on the house of Judah, and I will save them by the Lord their God. I will not save them by bow or by sword or by war or by horses or by horsemen.”
Israel’s sin is great and God’s anger is likewise great. The sins of Israel are unforgivable. Just as they pursued the false gods of their neighbors, forsaking God, they would be forsaken and shown no mercy by God. Assyria, the vessel of God’s wrath, was indeed merciless in its conquest of Israel. This passage goes to indicate that Judah would be spared, though not by its own military power. This came to pass in 701 BC when Assyria came up to the very gates of Jerusalem before being miraculously turned back.