Hosea 13:2

And now they sin more and more (margin, add to sin ) , and have made them molten images of their silver, and idols according to their own understanding, all of it the work of the craftsmen . This part of the verse declares their persistent adherence to idolatry. The note of time, "and now," marks the transition from the past period, when Baal-worship had been introduced by Ahab and subsequently overturned by Jehu, to the prophet's own day. Not content with the calves of Jeroboam and the worship of Baal, they added new superstitions and new hideous objects of worship. מַסֵּכָה , a molten image, like the molten calf of Aaron, is singular, but used collectively, so as to correspond with עֲעַבִּים , idols, which is plural. The reference here is,

The manner in which they made these idols was

The best explanation of this difficult clause is, in our opinion,