Following the miraculous victory over Sisera's army, a profound song of gratitude to God bursts forth. This song is a shared expression of praise between the spiritual leader and the military commander. Although both Deborah and Barak participate in the praise, the action is framed as Deborah's alone. This highlights that she was the central figure in the rescue. She was the one who composed and arranged the song, while Barak simply joined in and followed her lead, similar to the way Miriam took the lead in speaking before Aaron [רד״ק, אברבנאל].
The profound importance of this song is visually preserved in Jewish scribal tradition. It is written in a special pattern of alternating text blocks, resembling bricks laid over half-bricks, much like the famous structure of the Song of the Sea [מנחת שי].
The explicit mention that they openly expressed and declared the song is understood in several ways, as the added emphasis hints at deeper realities. The primary approach among commentators is that Deborah wrote the song specifically so that Barak and all the Israelites would join her and sing it together [מצודת דוד, אברבנאל]. However, the act of vocalizing this praise is also seen as carrying profound spiritual implications. One perspective suggests a spiritual rule: anyone who sings praise to God for a miracle earns another miracle. Thus, the declaration of the song hints that heaven will respond by initiating yet another miracle for them [נחל שורק, אהבת יהונתן].
Others point to the eternal nature of this praise. By singing the song in this world, Deborah merited to continue singing it every day in the Garden of Eden [צוארי שלל]. Finally, there is a view that this joyous expression serves as a hint to the ultimate resurrection of the dead; though they sang on that specific day in history, they are destined to return and sing this very song again in the future [אלשיך].