And God said unto Moses,
I AM THAT I AM:
and he said,
Thus shall you say unto the children of Israel, I AM has sent me unto you.
All Commentaries on Exodus 3:14 Go To Exodus 3
Jerome
AD 420
There is one nature of God and one only; and this, and this alone, truly is. For absolute being is derived from no other source but is all its own. All things besides, that is, all things created, although they appear to be, soon are not. For there was a time when they were not, and that which once was not may again cease to be. God alone who is eternal, that is to say, who has no beginning, really deserves to be called an essence. Therefore also he says of him, “I am has sent me.” As the angels, the sky, the earth, the seas all existed at the time, it must have been as the absolute being that God claimed for himself that name of essence, which apparently was common to all. But because his nature alone is perfect and because in the three persons there subsists but one Godhead, which truly is and is one nature, whoever in the name of religion declares that there are in the Godhead three elements, three hypostases, that is, or essences, is striving really to predicate three natures of God.
