ISAIAH’S SIGNATURE. Uncovered in the Ophel excavations, this seal impression (bulla) may have belonged to the prophet Isaiah. At the top of the bulla are the remains of a grazing doe, a symbol of blessing. The name Isaiah appears in the middle register, and the letters nvy appear in the lower register. Adding an aleph to the damaged left end of the lower register would complete the word to nvy(’), which means prophet in Hebrew.