A public call is issued to the Israelites, urging them to declare God's greatness and mighty deeds to all the nations of the world. There is a clear duty to share the story of His honor and His wonders with every surrounding people. This call can be understood through the lens of a specific historical event. The focus is on the great salvation God brought about during the period when the Ark of the Covenant was captured and taken into exile in the land of the Philistines. According to this view, the wonders that must be publicized are the specific miracles that occurred surrounding the Ark while it was held in captivity [רש״י].
In contrast to this focused historical view, another perspective understands the call as a broader principle regarding God's active presence in the world. The sharing of God's glory among the nations occurs when He promises to perform a miracle and then brings it to reality. Witnessing the fulfillment of a divine promise stirs a natural, honest urge within people to honor Him and express gratitude for His greatness. This response is directly driven by the sheer power revealed through the wondrous events He brings into existence [רלב״ג].