Vachogotta questions the Buddha as to whether others have attained. Then the Buddha accepts him into the order and after four years gives him directions on how to attain the Higher Powers one of which is the deliverance from the taints and Vachagotta becomes an arahat
Magandiya is hedonist, believing sensual pleasure is Nibbana. The Buddha explains the gratification, the danger and escape from this very wrong understanding.
Afraid of the breakup of the order when he dies as seems to have happened when the leader of the Jains died, the Buddha explains the Six Roots of Disputes, the Four Kids of Litigations and the Seven Settlements.