Hosea is the first book of the twelve minor prophets. Because the times are outwardly prosperous, idolatry prevails and immorality is rampant. Hosea urges a return to God in order that He may show mercy and forgiveness.

Hosea 4

4:1 Hear the word of the LORD, ye children of Israel: for the LORD hath a controversy with the inhabitants of the land, because there is no truth, nor mercy, nor knowledge of God in the land.