Lo-Ruhamah was the daughter of Gomer. God commanded Gomer's husband, the prophet Hosea, to name Gomer's daughter Lo-Ruhamah ("not shown mercy"), since God was not going to have mercy on Israel or the House of Jehu. Nevertheless, God was still going to have mercy on Judah and the House of David.
Name her Lo-Ruhamah (not shown mercy), for I will no longer have mercy on the house of Israel, that I would ever forgive them. But I will have mercy on the house of Judah and will rescue them by the Lord their God, and will not rescue them by bow, sword, war, horses, or horsemen.— Hosea 1:6–1:7 (AMP)