Prophet to the northern kingdom who married a prostitute to show God's relationship to a faithless Israel calls the people to Repentance is a central biblical teaching. All people are sinful and God desires that all people repent of their sins. The Hebrew word for repent means to "turn away" from sin. The Greek word for repentance means to "change on'e mind," more specifically, it means... and return to the Lord.
Hosea calls the people to repent and to know the Lord–“Let us know, let us press on to know the Lord” (6:3). The people had turned away from God and proper knowledge of God. Hosea calls them back. He borrows language from the people’s worship of false fertility gods–“revive us” and “raise us up” are borrowed from the worship of Baal–to call the people back to the true God, who alone can keep promises and who alone can revive the people.