ʿAlimtum wa-dhuqtum establishes firsthand experience; tabʿathūhā … taḍram shows renewed escalation; ʿarka al-raḥā depicts crushing; talqaḥ kishāfan … tafṭim suggests multiplying consequences; and tughlil lakum gives those harms the ironic name of yield.
The central conclusion is that people may start war, while its effects reach far beyond the immediate combatants and moment. The next verses introduce the case of Ḥuṣayn ibn Ḍamḍam, turning from this general warning to a particular tribal episode; that episode is reserved for the next level.