Charles H. Spurgeon on Psalms 54:3

(first clause). There is a great mistake made by rendering the word oyrz (zarim) strangers. The Ziphites surely were Israelites, and not strangers. The fact is this, that word is taken from hrz (zarah) the primary meaning of which is "to scatter, "to "disperse, "also "to sift, "as grain. Hence it signifies, likewise figuratively, to sift a matter, to investigate, to search out, to trace out. So here, David complains of the new and dangerous enemies he had got in the Ziphites, who became Saul's spies. When he pleads, therefore, for deliverance, saying, "Save me, O God, " etc., he describes the danger he was in: For spies have risen against me. Benjamin Weiss, in "New Translation, Exposition, and Chronological Arrangement of the Psalms," 1858.