“Divine Aseity and Apologetics” by John M. Frame

The term aseity comes from the Latin phrase a se, meaning “from or by oneself.” In the theological literature, the term designates a divine attribute by which God is “whatever he is by his own self or of his own self.” Since God is a se, he does not owe his existence to anything or anyone outside himself, nor does he need anything beyond himself to maintain his existence. He is not like the idols that depend for their existence on select materials, skilled craftsmen, and ritual offerings (Isa. 40:19-20, 44:15-17, Psm. 50:8-15). Indeed, he has no needs at all (Acts. 17:25). So the terms self-contained, self-existent, self-sufficient, and independent are often used as synonyms for a se. …