Lavan is the basic Hebrew color adjective for white, appearing 29 times across a striking range of referents. Its most technically demanding uses occur in Leviticus 13-14, where the priest must distinguish white patches, white hairs, and white swellings in diagnosing skin disease — the word appears over a dozen times in these two chapters alone, making whiteness a central diagnostic criterion. Outside the purity laws, lavan describes the white streaks Jacob exposed on peeled rods to influence his flocks' breeding (Gen 30:35-37), the manna that tasted like wafers with honey (Exod 16:31), the teeth of Judah 'whiter than milk' in Jacob's blessing (Gen 49:12), and the horses in Zechariah's apocalyptic visions (Zech 1:8; 6:3, 6). Ecclesiastes counsels that one's garments should always be white — a sign of festive joy (Eccl 9:8). Cross-linguistic evidence is perfectly uniform: Spanish 'blanco/blanca,' French 'blanc,' German 'weiss,' Hindi 'safed.'