Jamieson, Fausset and Brown on Hosea 8:14

14. forgotten ... Maker--(De 32:18).

temples--to idols.

Judah ... fenced cities--Judah, though less idolatrous than Israel, betrayed lack of faith in Jehovah by trusting more to its fenced cities than to Him; instead of making peace with God, Judah multiplied human defenses (Is 22:8; Jr 5:17; Mi 5:10, 11).

I will send ... fire upon ... cities--Sennacherib burned all Judah's fenced cities except Jerusalem (2Ki 18:13).

palaces thereof--namely, of the land. Compare as to Jerusalem, Jr 17:27.