Many of the psalms have no author attributed to them, so we have a large group of ‘unallocated’ psalms that have no identified author.
Psalm 123 looks to God for mercy.
To you I lift up my eyes,
O you who are enthroned in the heavens!
As the eyes of servants
look to the hand of their master,
as the eyes of a maid
to the hand of her mistress,
so our eyes look to the Lord our God,
until he has mercy upon us.
Have mercy upon us, O Lord, have mercy upon us,
for we have had more than enough of contempt.
Our soul has had more than its fill
of the scorn of those who are at ease,
of the contempt of the proud.