And the high places of Isaac shall be desolate, and the sanctuaries of Israel shall be laid waste; and I will rise against the house of Jeroboam with the sword.
And the high places - dedicated to idols.
Of Isaac. They boasted of their following the example of their forefather Isaac, in erecting high places at Beer-sheba (Amos 5:5: cf. Genesis 26:23-24; Genesis 46:1); but he and Abraham erected them before the temple was appointed at Jerusalem, and to God; whereas they did so after the temple had been fixed as the only place for sacrifices, and to idols. In the Hebrew here Isaac is written with the Hebrew letter called sin (s), instead of the usual Hebrew letter called tsaade (ts); both forms mean laughter; the change of spelling perhaps expresses that their "high places of Isaac" may be well so called, but not as they meant by the name; because they are only fit to be laughed at in scorn. Probably, however, the mention of "Isaac" and "Israel" simply expresses that these names, which their degenerate posterity boasted in, as if ensuring their safety, will not save them and their idolatrous "sanctuaries," on which they depended, from ruin (cf. Amos 8:14).
And I will rise against the house of Jeroboam with the sword - fulfilled in Shallum's slaughter of Zachariah, son of Jeroboam II, the last of the descendants of Jeroboam I, who had originated the idolatry of the calves (2 Kings 15:8-10).