Adamant

(Heb. shamir), Ezek. 3:9. The Greek word adamas means diamond. This stone is not referred to, but corundum or some kind of hard steel. It is an emblem of firmness in resisting adversaries of the truth (Zech. 7:12), and of hard-heartedness against the truth (Jer. 17:1).

שמיר, Ἀδάμας, Ecclus. xvi, 16. A stone of impenetrable hardness. Sometimes this name is given to the diamond; and so it is rendered, Jer. xvii, 1. But the Hebrew word rather means a very hard kind of stone, probably the _smiris_, which was also used for cutting, engraving, and polishing other hard stones and crystals. The word occurs also in Ezek. iii, 9, and Zech. vii, 12. In the former place the Lord says to the Prophet, “I have made thy forehead as an adamant, firmer than a rock;” that is, endued thee with undaunted courage. In the latter, the hearts of wicked men are declared to be as adamant; neither broken by the threatenings and judgments of God, nor penetrated by his promises, invitations, and mercies. See DIAMOND.