Commentaries:
Jamieson, Fausset, and Brown
when it is seen that—rather, "When Moab shall have appeared (before his gods; compare Exodus 23:15), when he is weary (that is, when he shall have fatigued himself with observing burdensome rites; I Kings 18:26, etc.), on the high place (compare Isaiah 15:2), and shall come to his sanctuary (of the idol Chemosh on Mount Nebo) to pray, he shall not prevail"; he shall effect nothing by his prayers [MAURER].
Other Jamieson, Fausset, and Brown entries containing Isaiah 16:12:
Isaiah 15:1
Isaiah 16:1
Jeremiah 48:35
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