John Gill Bible Commentary

Let them melt away as waters which run continually,.... Let them be disheartened, and their courage fail them, and let there be no spirit left in them, Jos 7:5; or let them be unstable as water that is continually running, ever upon the flux and motion; let them never be settled, but always changing in their state and circumstances, Gen 49:4; or let them "come to nought", as the Septuagint and Vulgate Latin versions; which is the case of water that runs over or runs away: or "let them be despised", as Jarchi, and the Arabic, Syriac, and Ethiopic versions; being useless and unprofitable, as water is when passed and gone: or let their ruin and destruction be as swift as the gliding water; let them be brought to desolation in a moment; Job 24:18; and let it be irrecoverable, as water running over the cup, and scattering itself, is spilled upon the ground, and cannot be gathered up, Sa2 14:14. The Targum is, "let them melt in their sins as water;'' when he bendeth his bow to shoot his arrows, let them be as cut in pieces; either when the wicked man bends his bow to shoot his arrows against the righteous; when he devises, his chief against him, shoots out bitter words, and attempts to do hurt unto him; let it be as if the string of his bow and his arrows were all cut to pieces; let all his designs, words, and actions, be without effect, and let not his hand perform his enterprise: or when God bends his bow against the wicked, so Jarchi; and prepares the instruments of death for them, and ordains his arrows against the persecutors, Psa 7:12; let then his and his people's enemies be cut off, as the tops of the ears of corn; as the word used signifies, Job 24:24. The words may be rendered, "let him (God) direct his arrows; as the tops of the ears of corn are cut off" (f); so let them be. (f) "concidantur, succidantur instar spicarum", Michaelis.