إِنَّ الَّذِي سَمَكَ السَّمَاءَ بَنَى لَنَا بَيْتًا
Indeed, the one who raised the sky has built us a house.
In this poetic illustration, the clause «سمك السماء» links the builder with an exceptionally elevated act. When the predicate announces that the same agent built a house, the earlier description lends the assertion a grand, laudatory tone.
The rhetorical function is indirect magnification of the predicate (التعريض بالتعظيم لشأن الخبر). This is a literary claim in its poetic setting; its hyperbolic formulation should not be turned into an independent theological or historical assertion.