The message completes a clear condition placed before the nation, hinging entirely on their obedience to God's messengers [מצודת דוד]. The primary approach among commentators notes that the core demand is simply for the people to listen to the prophets. God's effort to reach them is constant and relentless. He sends His messengers time and time again, without pause, to provide guidance and warnings.
Despite this continuous divine effort, a sad reality remains. The people stubbornly refuse to listen. Because of this persistent rejection, a sharp rebuke and a warning for the future are issued. If the nation continues on its current path and acts exactly as it has up until now, it will inevitably suffer the consequences [מצודת דוד].