If God’s existence is not just a part of Him (which it is for all things which can have existence or not), then He must have infinite existence.
Kama kuwepo kwa Mungu si sehemu kwake (ambayo ni kwa ajili ya mambo yote ambayo inaweza kuwa na kutokuwepo au kisicho na uhai) basi lazima awe na mwisho usio na kikomo.