A desperate, urgent plea for survival forms the heart of the poet's cry. Caught in a moment of deep distress, he calls out to God with a dual request, blending two distinct pleas for rescue into one complete prayer for salvation. The primary approach among commentators is that the underlying urgency of the prayer applies to the entire thought. Even though the concept of hurrying [מצודת ציון, ביאור שטיינזלץ] is mentioned only once, the intent is a double request: asking God to act quickly to save him, and asking God to act quickly to assist him [אבן עזרא, רד״ק, מאירי, מצודת דוד, מלבי״ם]. This repetition is mirrored by a dual appeal to God, using two different divine names to match the two calls for help [רד״ק].
Rather than a simple repetition, these two requests address different levels of danger. The request for salvation is directed at enemies who actively seek to take his life, while the request for assistance is meant for lesser troubles and hardships [מלבי״ם].
A deeper layer of meaning emerges from the specific names of God used in the prayer. One name represents the attribute of strict justice, while the other represents the attribute of mercy. One view suggests that strict justice is already prepared to save the poet, and the attribute of mercy is simply called upon to speed up the rescue [אלשיך].
This dynamic reveals a profound moral conflict within the hunted poet. He fears that if strict justice is used to save him, it will bring severe punishment upon his enemies, who are members of his own nation. Feeling sorrow for their situation, he does not wish to see them harmed and would rather they change their ways. Because of this, he specifically appeals to God's mercy for help, asking to be rescued in a way that spares his pursuers from destruction [אלשיך]. On a broader scale, this dual plea reflects the unique burden of King David, or the future Messiah, who requires two forms of salvation: immediate rescue from present enemies, and future salvation in his role as the shepherd of Israel [אלשיך].