you understood 預定 as 故意安排,
somehow here
,comparing you believe 神沒預定了猶大賣耶穌,
make more sense.

here 故意安排 against 猶大's will? no! 猶大賣耶穌 is 猶大's will,
thus, it is his responsibility. we cannot yell at God why
You didn't change 猶大's will as you did to Peter!
故意安排 Peter to be saved against Peter's will? Yes,
but God did something first to change Peter's will.