Malachi, Part 4

Messenger (3:1). The idea of a forerunner preparing the way of the Lord also occurs in
The refining and smelting of metals was accomplished in one of two types of furnaces: either the kiln or “blast furnace,” in which there is direct contact between the fuel and the ore yielding an oxidizing or reducing reaction, or the “crucible furnace,” which protects the ore or metal from direct contact with fuel of the fire or the products of its combustion and achieves separation of precious metals by means of both oxidation and amalgamation. Malachi may be referring to a metallurgy process known as cupellation. Such refinement of silver required exposure of the ores to high temperatures in a blast of the air (from a bellows), resulting in the oxidation of unwanted metals and other impurities. The purified silver was retrieved in a cupel or a small cup-like mold made of a porous material like bone ash or clay.23
Launderer’s soap (3:2). This term (Heb. bōrît) occurs in the OT only here and in
Sorcerers (3:5). The term refers to those who practice divination or fortune-telling by means of occult magic and witchcraft to influence people or events for personal gain or that of their clients. Sorcery was among the list of Canaanite customs prohibited for the Hebrews by the Mosaic law (
