Shared ground
Hosea 6:4 portrays God speaking directly to both Ephraim (the northern kingdom) and Judah (the southern kingdom). God’s repeated question (“What shall I do to you?”) signals that something in the relationship has reached a crisis point, not because God lacks information, but because ordinary responses have not produced lasting change.
The stated problem is the people’s “goodness” (their visible loyalty/faithfulness toward God). It appears briefly but does not last—like a morning cloud or dew that vanishes soon after dawn. The point is not that their loyalty never shows up, but that it fades quickly.
Where interpretation differs
What “goodness” means. Some read it mainly as religious devotion—repentant words, worship activity, vows made in a crisis. Others read it more broadly as covenant loyalty expressed in life—moral faithfulness, justice, and consistent allegiance to God. The verse itself emphasizes durability (“doesn’t last”) more than identifying one specific arena.
What God’s question is doing. Some take the repeated “What shall I do to you?” as chiefly grief and frustration: God is wounded by repeated short-lived returns. Others hear it as a warning that decisive action (discipline/judgment) is now on the table because gentler measures have not worked. The line can carry both emotional weight and an implied threat without spelling out the next step here.
Why the disagreement exists
The verse uses compact poetry. “Goodness” is a broad word in English translation, and the images (cloud/dew) stress temporary character more than content. Also, Hosea 6:1–3 just before this sounds like confident repentance; readers differ on whether those words were sincere or superficial, which affects how they hear God’s reply in 6:4.
What this passage clearly contributes
Explicitly, the text claims that God addresses both kingdoms with the same charge: their loyalty is short-lived and unreliable. Theological inference: God desires loyalty that persists, not only momentary resolve, and God evaluates religious talk by whether it endures. The verse also contributes to Hosea’s larger theme that public piety can coexist with instability, and God names that instability as a serious covenant problem.