The wicked have drawn out the sword - That is, they have prepared themselves with a full purpose to destroy the righteous.
And have bent their bow - literally, “have trodden the bow,” in allusion to the method by which the bow was bent: to wit, by placing the foot on it, and drawing the string back.
To cast down the poor and needy - To cause them to fall.
And to slay such as be of upright conversation - Margin, as in Hebrew: “the upright of way.” That is, those who are upright in their manner of life, or in their conduct.