תהילים יא:ב פירוש: רש״י

For behold the wicked Doeg and the informers of the generation who cause hatred between me and Saul.

tread The expression of treading is appropriate for the bow, because if it is stout, he must place his foot on it when he wishes to bend it.

the bow They have directed their tongue treacherously [as] their bows (Jer. 9:2).