Basilides

Taught at Alexandria a generation before Valentinus and pushed negative theology further than anyone else in the ancient world. Hippolytus reports him saying there was a time when nothing was; and that nothing was not any existing thing, and that what is above everything is best called the non-existent God — not because it lacks being but because "being" is too small a word for it.

The closest the Greek-speaking world came to Ein Sof and Ayin — the Nothing that is not an absence — reached from grammar rather than from Torah, and roughly a thousand years earlier.