What Does Psalms 109:23 Mean?

I am gone like the shadow when it declineth: I am tossed up and down as the locust. Two vivid metaphors capture David's sense of transience and helplessness. The declining shadow (ke-tsel kintoyo, כְּצֵל כִּנְטוֹתוֹ) refers to lengthening afternoon shadows that signal day's end—fleeting, insubstantial, soon to vanish entirely. David feels his life ebbing away, his substance dissolving like shadows before nightfall.

The locust image conveys violent instability: tossed up and down translates ni'arti (נִעֲרְתִּי, shaken off), describing how locusts are shaken from garments or driven by wind. Locusts were both destructive pests and symbols of vulnerability to external forces. David experiences powerlessness—buffeted by circumstances, unable to control his destiny, shaken like an insect from clothing.

These metaphors express existential despair yet remain grounded in prayer. David brings his sense of dissolution and helplessness directly to God, modeling lament that doesn't avoid raw emotion but channels it toward the only One who can restore substance to shadow-lives and stability to those storm-tossed.