Judges 17:1-3
1. a man of mount Ephraim—that is, the mountainous parts of Ephraim. This and the other narratives that follow form a miscellaneous collection, or appendix to the Book of Judges. It belongs to a period when the Hebrew nation was in a greatly disordered and corrupt state. This episode of Micah is connected with Jud 1:34. It relates to his foundation of a small sanctuary of his own—a miniature representation of the Shiloh tabernacle—which he stocked with images modelled probably in imitation of the ark and cherubim. Micah and his mother were sincere in their intention to honor God. But their faith was blended with a sad amount of ignorance and delusion. The divisive course they pursued, as well as the will-worship they practised, subjected the perpetrators to the penalty of death.
3. a graven image and a molten image—The one carved from a block of wood or stone, to be plated over with silver; the other, a figure formed of the solid metal cast into a mould. It is observable, however, that only two hundred shekels were given to the founder. Probably the expense of making two such figures of silver, with their appurtenances (pedestals, bases, &c.), might easily cost, in those days, two hundred shekels, which (at 2 shillings, 4 pence each, is about 23 pounds) would be a sum not adequate to the formation of large statues [TAYLOR, Fragments].
Hosea 4:17
17. Ephraim—the ten tribes. Judah was at this time not so given to idolatry as afterwards.
joined to—closely and voluntarily; identifying themselves with them as a whoremonger becomes one flesh with the harlot (Nu 25:3; 1Co 6:16, 17). idols—The Hebrew means also "sorrows," "pains," implying the pain which idolatry brings on its votaries. let him alone—Leave him to himself. Let him reap the fruits of his own perverse choice; his case is desperate; say nothing to him (compare Jer 7:16). Here Ho 4:15 shows the address is to Judah, to avoid the contagion of Israel's bad example. He is bent on his own ruin; leave him to his fate, lest, instead of saving him, thou fall thyself (Isa 48:20; Jer 50:8; 51:6, 45; 2Co 6:17).