Upon Jonath-elem-rechokim--literally, "upon the dove of silence" of distant places; either denoting a melody (see on Psa 9:1) of that name, to which this Psalm was to be performed; or it is an enigmatical form of denoting the subject, as given in the history referred to (Sa1 21:11, &c.), David being regarded as an uncomplaining, meek dove, driven from his native home to wander in exile. Beset by domestic and foreign foes, David appeals confidently to God, recites his complaints, and closes with joyful and assured anticipations of God's continued help. (Psa 56:1-13)
would swallow--literally, "pants as a raging beast" (Act 9:1).