Charles Ellicott Commentary Psalms 18:14

"And he sent out his arrows, and scattered them; Yea, lightnings manifold, and discomfited them." — Psalms 18:14 (ASV)

He sent out. —In the majesty of the storm we have almost forgotten its cause, the Divine wrath against the enemies of the poet. They are abruptly recalled to our memory by the suffix (“them”) in the verbs in this verse. So the Septuagint and Vulgate. Many ancient interpreters, however, understood them to mean “the lightnings,” while Ewald would refer the pronoun to “the waters” in the next verse. Instead of “shot” (rab), many render it as if it were the adjective “many,” “his numerous lightnings.” But compare Psalm 144:6 and the verse in Samuel.