«وَتَوَاصَوْا بِالْحَقِّ وَتَوَاصَوْا بِالصَّبْرِ»
They urged one another to truth and urged one another to patience.
The verb tawāṣaw is repeated, each time with a different prepositional complement. Repeating the predicate rather than sharing it highlights these as two distinct obligations of mutual counsel.
Both coordination and purposeful repetition can be analyzed. The useful answer explains the effect on meaning, not merely the fact that a word appears twice.