Honesty
Jataka Tales
Bhisa Jataka: The Lotus Roots and Sakka's Test
Eight renunciant siblings swear oaths over missing lotus roots, treating wealth and marriage as curses, until Sakka confesses his hidden test (No. 488).
The Precepts That Brought Rain: The Kurudhamma Jataka
A drought-stricken kingdom borrows a rain-bringing elephant and finds it is not enough, then learns an honest household's precepts were the real cause of rain.
Serivavanija Jataka: The Honest Hawker's Golden Bowl
A greedy peddler spurns a soot-covered golden bowl to cheat an old woman later, but an honest rival buys it fairly, and grief at his own greed kills him.