Commentaries:
Jamieson, Fausset, and Brown
Their sin had been accumulating from age to age until God at last repaid it in full.
mountains— (Isaiah 57:7; Ezekiel 18:6; Ezekiel 20:27-28; Hosea 4:13).
their—"Your" had preceded. From speaking to, He speaks of them; this implies growing alienation from them and greater distance.
work—the full recompense of their work (so Isaiah 49:4).
Other Jamieson, Fausset, and Brown entries containing Isaiah 65:7:
Psalms 79:12
Isaiah 64:12
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