Psalm 70, as mentioned earlier, repeats Psalm 40:13-17 with several minor word changes--these changes perhaps suggesting a different tune. It is interesting that Psalm 70, being taken from Psalm 40, follows Psalm 69, which itself carries imagery over from Psalm 40. Thematically, Psalm 70 appears to be a condensed version of the material in Psalm 69--and it also seems to introduce Psalm 71 (compare Psalm 70:1-2; Psalm 71:12-13).

The superscription of Psalm 70, like that of Psalm 38, in the NIV says, "A petition." But the KJV and NKJV give the literal rendering of the words here as "To bring to remembrance." In the present case, this terminology could reflect this psalm being a reprise of the end of Psalm 40 and a summary of Psalm 69--i.e., a recounting of the need for deliverance.

One point of indirect contact between Psalms 70 and 69 is found in Psalm 70:3. This verse, with enemies saying "Aha, Aha!" (also Psalm 40:15), finds a counterpart in Psalm 35:21. These enemies, it is said two verses earlier in Psalm 35:19, "hate me without a cause"--a phrase that also appears in Psalm 69:4 (all of these being messianic psalms).

David focuses on God throughout his trial--continually praising Him (Psalm 70:4) and seeking His help.