אֶהְיֶה
The divine name revealed to Moses at the burning bush (Exodus 3:14), meaning "Who is" or "I am who I am." Lapide, citing Justin, explains that Plato called God "to on" (that which is) because he learned from Moses, who calls God "ehyeh."
Preface and Praise of Sacred Scripture
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Praises of Moses from Scripture and the Fathers
— Lapide, citing Justin, explains that Plato called God "to on" because he learned from Moses, who calls God "ehyeh"
"he likewise called Him "to on," that is, "that which is," just as Moses calls Him "ehyeh," that is, "who is," or "I am who I am.""