Albert Barnes Commentary Psalms 44:25

"For our soul is bowed down to the dust: Our body cleaveth unto the earth." — Psalms 44:25 (ASV)

For our soul is bowed down to the dust - That is, we are weighed down with calamity, so that we sink to the earth. The expression is one that denotes great affliction.

Our belly cleaveth unto the earth - We are like animals that are prone upon the earth, and that cannot rise. The allusion may be to reptiles that cannot stand erect. The figure is intended to denote great prostration and affliction.