Regarding the reading of line two, I must  emphasize that I do not consider the reading “Yahweh” (i.e., the Greek form of it) to be convincing at all.  Simply put, this reading is wrong.  To be sure, the tetragrammaton is attested in ancient Greek (with various spellings) and Iaeo can be considered a viable Greek spelling of the tetragrammaton.  However, the problem is that the first letter of line two is not an iota (and, at the very least, this letter would be necessary for reading the tetragrammaton in this line)!  Of course, Tabor and Jacobovici argue that the first letter of this line is an iota, and they are obviously assuming that this letter consists of a top horizontal, a bottom horizontal, and a long vertical connector.

via Reflections of an Epigrapher on Talpiyot Tombs A and B: A Detailed Response to the Claims of Professor James Tabor and Filmmaker Simcha Jacobovici.

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