Declare ye it not at Gath. Compare 2 Samuel 1:20.
Gath. Now Tell es Safi (Joshua 11:22, &c).
at all. Hebrew. bakko, written defectively for beakko. Note the Figure of speech Paronomasia (App-6). Hebrew. bakko 'al tibku "[in] Weep-town weep not".
in... Aphrah roll thyself in the dust. Note the Figure of speech Paronomasia (App-6). Hebrew in 'aphrah... 'aphar, English, "in Dust-house roll thyself in dust, "