David’s psalm/quotation is constructed in a unique way that gives assistance to the emphasis of interpretation. The Hebrew Poem structure is hidden from the English reader. If you could read this passage in Hebrew you would notice symmetrical chiasmus. This chiasmus consists of five units of thought, with a one-verse postscript (extra at the end). The chiasmus can be analyzed as follows:
|C||Praise for the Lord||2 Samuel 22:1–4|
|B||The Lord’s deliverance of David||2 Samuel 22:5–20|
|A||Reason why the Lord delivered David||2 Samuel 22:21–29|
|B||The Lord’s deliverance of David||2 Samuel 22:30–46|
|C||Praise for the Lord||2 Samuel 22:47–50|
|D||The Lord’s enduring support for the house of David||2 Samuel 22:51|
A chiasmus puts the focus of the literature on the center of the structure, in this case “A.” Because the theme: Reason why the Lord delivered David (2Samuel 21:21–29 is in the center of the chiasmus, it is likely that it is the most significant feature of the poem.
If this is so, then this poem/psalm can be seen as a restatement of a central thesis of the Torah—obedience to the Lord results in life and blessing. The reason why the Lord delivered David is because David obeyed the Lord, and the Lord granted him life and blessing.
The message of the Psalm may thus be summarized as follows: Because David scrupulously obeyed the Lord, the Lord rewarded him by responding to his pleas, delivering him during times of trouble and exalting him. For this the Lord is to be praised. This unit of material therefore “is a theological commentary on the history of David.”