I would be happy and rejoice in you. In you, in your Torah, and in your salvation. I will sing your name, the highest and most excellent name. My enemies will retreat.
Rabbi Yehudah said they returned to their shame, as they were before. Rabbi Pinchas said they returned to their backs, as it is said (1 Samuel 23:27), "And an angel came to Saul, a heavenly angel." As David said (Psalms 57:4), "He sends from heaven and saves me." Another explanation is that my enemies will retreat to their shame, and Rabbi Huna said that they will return to the garments that are prepared for them in the future.
This is as Samuel said that in the future when the nations come and plead before their God, they will have no strength to help themselves, as it is said (Isaiah 45:20), "They shall be saved, and there shall be no savior for them." Then they will turn to the Holy One, blessed be He, as it is said (Jeremiah 2:27), "They will call upon the Lord, but he will not answer them."