Existence is the state of being, as opposed to non-existence. Absolute Existent Being is unconditioned [1] and noncontingent [2] and can be predicated of God alone. God is the ultimate source of God's own uncreated self-existence and is thus the source and author of all existence, uncreated and created, and of all created being. All of existence distinct from God is created being, created existence, as distinct from uncreated being, uncreated existence. We owe existence to the grace of God.
The question, "Who created God?", falsely assumes that Christian doctrine teaches that all that exists has been created or is being created. But this question does not apply to uncreated existence, to the uncreated God, who according to Christian doctrine is by definition uncreated and who does exist.
See Exodus 3:14 multiple translations. This can be taken as an assertion of God’s aseity or self-existence, and has been understood as such by the Church, since the time of the Fathers, as a true expression of God’s being, even though it is not precisely the meaning of the Hebrew. See also multiple commentaries on Exodus 3:14 and NABRE Exodus 3:14 footnote
Compare John 1:1-3 NABRE and footnotes
Categories: [Philosophy]