Gomer (Hosea's wife) was analogous to Gods people. Her adultery, prostitution and overall unfaithfulness were examples of the nature of His people. Hosea on the other hand represented the savior figure, reclaiming and reconciling, forgiving and forging on.
Though Hosea's story took place 2500 years ago the theme is the same. Those who call themselves 'His people' are still unfaithful, still idolatrous, still prostituting themselves for other distorted 'gains'. Sounds depressing right?
But just as God sent Hosea back to his wife, He sent Immanuel (Jesus) to reconcile with us, the ever-wandering generation. To us he says, 'Do not let your hearts be troubled. Trust in God, trust also in Me.' Such gentle and comforting words to people so callous and distant.