John Gill Commentary Psalms 74:22

"Arise, O God, plead thine own cause: Remember how the foolish man reproacheth thee all the day." — Psalms 74:22 (ASV)

Arise, O God, plead thine own cause
The church's cause being the cause of God; and therefore she desires that he would arise and exert himself, and take vengeance on his and her enemies: this is an interesting argument, and a forcible one:

remember how the foolish man reproacheth thee daily ;
this being so frequently repeated, as in (Psalms 74:10Psalms 74:18) , shows how much the name and glory of God lay near her heart; the Targum is, "remember the reproach of thy people by a foolish king all the day;" perhaps the man of sin is meant, the king of the locusts, and angel of the bottomless pit.