Lexical Definition

‎צַו‎ tsav (tsav) command ^H:N-M
or צָו tsâv (tsawv); from ‎צָוָה‎

commandment, precept.

• an injunction

1) command, ordinance, oracle (meaning dubious)
1a) used in mocking mimicry of Isaiah's words and thus not a true divine command

Brown-Driver-Briggs

‎צַו‎ apparently noun [masculine], dubious word; — in ‎הָלַךְ‎ ‎אַחֲרֵיצָָֿ֑ו‎ Hos 5:11 usually command, ordinance; < ᵐ5 ᵑ6 Che Now GASm ‎שָׁוְא‎; elsewhere only ‎צַו לָצָ֨ו צַו לָצָ֔ו‎ (|| ‎קַו לָקָו קָו קַו לָקָו‎), Isa 28:10 in mocking mimicry of Isaiah's words, and, vIsa 28:13, of the unintelligible speech of ‎׳‎‎י‎'s foreign agents of judgement; Ges Che^Comm. and others (compare AV RV) render command upon command; Ew Di (carpenter's) rule (+ ‎קַו‎ = line and rule), from √‎צָוָה‎ (whence ‎צִיּוּן‎); Du Che^{Hpt explain as mocking sounds} without sense.

Brown-Driver-Briggs References