Appealing to God that his chastening is not a result of their sin
Calling on God to again engage in his mighty deeds on their behalf
As a central message of the psalm Hermann Gunkel noted the contrast between past and present events. In Jewish traditions, its viewed as suffering in the face of the golden past, all the more shows the plight of the current situation.
Setting
The reference to scattering the Israelites among the nations in verse 11 could point to a date after the Babylonian exile. However, some have noted that the reference to God not going out with their armies in verse 9 would indicate that Israel still had standing armies at the time of the writing of Psalm 44 and thus the setting of the psalm would need to be before Judah's exile to Babylon. In addition, the psalmist's insistence in verses 17 and 18 that their plight was not due to national sin is further confirmation that he's not speaking of a time after the Babylonian exile.
Psalm 44 is a Psalm of communal lament, indicating that the suffering, in this case from being defeated by enemies, is communal. This Psalm reflects each of five key elements of a lament, or complaint, Psalm:
Address: Verse 1
"We have heard with our ears, O God, our ancestors have told us, what deeds you performed in their days, in the days of old" In this case, the Psalmist is speaking directly to God.
Complaint: verses 9-16, 17-19
In these verses, the Psalmist laments that God has been slow to act and has a responsibility to save these people from their enemies.
Statement of trust in the reliability of God as known by the Psalmist or community: verses 4-8
The Psalmist recites a history of God's saving acts, which includes reference to God commanding victories for Jacob.
Petition for God's active intervention: verses 23-26
These petitions can be quite specific. In verse 26, the Psalmist gives a direct command to God to "Rise up, come to our help."
Vow of Thanksgiving: verse 8
This particular Psalm includes a brief vow of thanksgiving in verse 8, when the Psalmist writes "In God we have boasted continually, and we will give thanks to your name forever"
A note about superscripts
Its superscript reads "To the Leader. Of the Korahites. A Maskil". It is addressed to the leader of the Korahites, who were likely a group of people who played a role in the music or worship of the temple. The term "Maskil" means "artistic song" and its inclusion in the superscript of this Psalm indicates that it was originally written with artistic skill.