In the Hebrew manuscripts, Psalms 9 and 10 work as a unit because together they form an acrostic poem, meaning each stanza begins with a successive letter of the Hebrew alphabet. This literary device has several functions. First, it provides a mnemonic device for easier memorization. Second, it is inherently beautiful; the rigid structure is a showcase for the author’s literary talents. Finally, it conveys the idea of completion by describing the reasons God is to be praised “from A to Z.” Psalm 9 offers David’s thanks and praise to God for defeating his enemies. Psalm 10, on the other hand, is a lament complaining that God is far off while the poor and helpless suffer.