كَذَلِكَ اسْتَحَقَّ اسْمَ الْخَالِقِ قَبْلَ إِنْشَائِهِمْ
Likewise, Allah was entitled to the name “Creator” before bringing creatures into existence.
Inshāʾ means bringing something into existence. The creation of an entity is an originated occurrence; the eternal divine perfection of creating did not begin with that occurrence.
The names Giver of life and Creator establish the same distinction between the divine attribute and its created effect.