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

4:2 By swearing, and lying, and killing, and stealing, and committing adultery, they break out, and blood toucheth blood.