«إِنَّ الْأَبْرَارَ لَفِي نَعِيمٍ وَإِنَّ الْفُجَّارَ لَفِي جَحِيمٍ»
Surely the righteous are in delight, and the wicked are in blazing punishment.
Both clauses are reports, but they make distinct judgments: the destiny of the righteous and that of the wicked. Their opposition is meaningful because righteous/wicked and delight/punishment belong to a single contrastive field.
Wāw brings these distinct yet complementary assertions together. Simply saying “both are declarative, therefore coordination is correct” is incomplete. The rhetorical basis requires a relevant semantic bond in addition to their matching communicative type. This passage belongs to Sūrat al-Infiṭār, verses 13–14.