The central rhetorical contrast
The ayah’s force lies in how the two sides are phrased.
تَخْلُقُونَ — “You create”
This is a verb. The verbal form points to an action that is temporary. It does not imply an inherent, permanent capacity. It is something that can be negated, interrupted, and prevented.
الْخَالِقُونَ — “Creators”
This is a noun. The nominal form conveys permanence, constancy, and an essential attribute. It signals an intrinsic power and ability, not a temporary claim to an act.