We have already seen that Judas loved money more than he loved the Messiah and that he was a fake not a follower. Now we learn that Judas was devious not devoted. Judas thought there was a good chance that Jesus could be the one to topple Rome set up His own kingdom. I think the whole reason Judas was following Jesus is because he wanted to be close so that when Jesus did this, Judas would be on the ground floor. But as time went on Judas began to realize that Jesus was not going to do this and that he had wasted 3 years following Him. Disillusionment turned to hatred, then treachery which opened up a foothold for Satan to get involved.
We become like Judas when we allow a root of bitterness to grow in our heart. Have ever been hurt by someone else? Have you noticed that those betrayals hurt the most are when they are at the hands of people who are close to you? Have you allowed a root of bitterness to sink into your heart? Judas did and it grew and ultimately gave Satan a foothold in his life. Like Judas, if you allow a root of bitterness into your heart it will grow and it will give Satan a foothold in your life, as well.