C82 Hod's Ability

Chu Junping was suddenly touched. The duke didn't say that he shouldn't take too much revenge on Xiao Yuan, or let him lose his father. Instead, he said, 'Don't let him lose his good brother, Chu Junping …'

What virtue and ability did Chu Junping have to make the duke trust him so highly? Moreover, if Chu Junping had come earlier, the duke would not have suffered so much