Since Judas ‘informed’ the crowd and accepted the wage from the high priests for arresting Jesus, he was a betrayer. Judas ‘final test’ had failed. It would be better for him not to have known the way of righteousness from the beginning. (2 Peter2:20-21).

Jesus would most likely still forgive him if he repented. (Matthew 18:21-22).

But Judas ‘could not forgive himself’ and eventually ended his evil work (betrayed Jesus) by another evil work (committed suicide) (Matthew 27:5) .

If Judas wanna to repent, he should have gone back to look for Jesus (who was probably on the way to Gogotha) to seek for Jesus’ forgiveness (and help Jesus to carry the cross instead of the army forcing a foreigner to carry). However, he had gone to look for the high priests – might be wanna to ‘held them responsible’ for ‘giving him a chance’ to do the wrong thing. (Matthew 27:3-4).

Say Judas was at outstation preaching the gospel during the time the high priests and the armed crowd came to arrest Jesus; Jesus could just tell them that he was the one and let them arrest him…

Judas chose to let Satan to enter himself and did the ‘dirty work’? It was his freedom! Jesus Christ allowed it, but it was his responsible to have refrained from doing so. Judas could not overcome this evil even though he had followed Jesus Christ for a couple of years, he was simply “a dog returns to its vomit"… (2 Peter2:22).