Albert Barnes Commentary Psalms 44:9

"But now thou hast cast [us] off, and brought us to dishonor, And goest not forth with our hosts." — Psalms 44:9 (ASV)

But thou hast cast off – The author of the psalm now begins to describe the nation's existing circumstances. These circumstances are strongly in contrast with what had existed in former times, when God intervened on their behalf and gave them success. This properly marks the beginning of the second part of the psalm, and the description continues to Psalm 44:16.

The Hebrew word rendered “hast cast off” implies disgust and abhorrence, like casting away something loathsome. See the word explained in the notes at Psalm 43:2. The reference is to what had occurred at the time the psalm was written. See also the introduction to this psalm. The allusion is to the invasion of the land by foreigners, their own defeat in their wars, and the calamities resulting from these invasions and defeats.

And put us to shame – By defeat and disgrace. See the word explained above (Psalms 44:7). For the defeat and humiliation supposed to be referred to, see 2 Chronicles 35:20–27 and 2 Chronicles 36:5–6.

And goest not forth with our armies – See the places referred to above. Thus, Josiah was defeated and killed, and thus the land was conquered by the invaders.