Flint
1. challamish, “hard rock,” out of which water was brought (Deut. 8:15; Psalm 114:8). Christ, because of His opposers, set His face like a flint, and He knew He should not be ashamed (Isa. 50:7). God made Jacob to suck oil out of the flinty rock (Deut. 32:13).
2. tsor, “rock.” God made Ezekiel's forehead as an adamant, harder than flint, because of the obduracy of Israel (Ezek. 3:9). The horses' hoofs of God's executors of judgment shall be like flint (Isa. 5:28).