God called the prophet Hosea to illustrate Israel’s idolatry by taking a harlot for a wife. Another detail of God’s character was here revealed. His love for Israel is like a husband’s jealous love (Exclusive love, not like the world’s jealousy). And when Israel worshiped other gods or burned incense to the baals, it was as adultery against God. Yet, God’s mercy and forgiveness are also revealed, in that He had plans to buy His people back from adultery. So, He had Hosea go and do the same (Hos. 3:2). God did all this so that in the “latter days” the children of Israel would return and seek the Messiah, which is Christ the Lord (“David their king”). This is still an unfulfilled prophecy, but a day is coming when a great revival will occur among the Jews and many will finally receive Christ as their Messiah.