kings ... not by me - not with My sanction (1Ki 11:31; 1Ki 12:20). Israel set up Jeroboam and his successors, whereas God had appointed the house of David as the rightful kings of the whole nation.
I knew it not - I approved it not (Psa 1:6).
of ... gold ... idols - (Hos 2:8; Hos 13:2).
that they may be cut off - that is, though warned of the consequences of idolatry, as it were with open eyes they rushed on their own destruction. So Jer 27:10, Jer 27:15; Jer 44:8.