Judas was the treasurer and was stealing money from the pot, as it were. He was following Christ in His ministry, yet not "following" Christ in belief and change of heart. I believe that Judas was in it for himself. It was a good gig, he got food and publicity and took cash when he needed it.....
He was not saved and had no desire to be so.
John 12:6King James Version (KJV)
6 This he said, not that he cared for the poor; but because he was a thief, and had the bag, and bare what was put therein.
Yes, and that suggests Judas didn't have a change of heart or a spirit of repentance which is a true sign of salvation like Zacchaeus who was a chief tax collector. A good tree doesn't bear bad fruit.
So all God had to do was select one who God knew would betray even the Son of God for 30 pieces of silver. (not a small sum) Judas's love of money was his undoing. He loved money and material things more than he loved God. Judas was already that way before he was chosen. God does not tempt people to do evil.
God knew how His Son would be treated as well. Some in the Sanhedrin were that way before Jesus came down to them first. (Israel) Their hearts were hardened by their own sin. Not God. The prophets were treated in like manner by the leadership of Israel.
Them=the chief priests and the elders of the people came to him. “By what authority are you doing these things?” they asked. “And who gave you this authority?”
Jesus said to them, “Truly I tell you, the tax collectors and the prostitutes are entering the kingdom of God ahead of you.32For John came to you to show you the way of righteousness, and you did not believe him, but the tax collectors and the prostitutes did. And even after you saw this, you did not repent and believe him.
Jesus replied, “I will also ask you one question. If you answer me, I will tell you by what authority I am doing these things.25John’s baptism—where did it come from? Was it from heaven, or of human origin?”
Of course as we know they wouldn't answer Jesus's question and therefore true to His word Jesus didn't answer theirs either.
Randy