Charles Ellicott Commentary 2 Chronicles 26:7

"And God helped him against the Philistines, and against the Arabians that dwelt in Gur-baal, and the Meunim." — 2 Chronicles 26:7 (ASV)

The Philistines, and ... the Arabians. —They are named together in 2 Chronicles 17:11 also. Their seat, Gur-Baal, only mentioned here, is unknown. The Targum makes it Gerar; the Septuagint apparently Petra (in Edom). The reading Gedor-Baal has been proposed.

The Mehunims (Heb., Me’ûnîm) are the Maonites, or people of Maon (Ma’ân), near Mount Seir. (See Note on 2 Chronicles 20:1.)

(The Syriac and Arabic omit from wall of Ashdod 2 Chronicles 26:6, to gifts to Uzziah, 2 Chronicles 26:8.)