198th Post Jesus on Faith Con't. - Mark 9: 23.

Mark 9: 23 Healing of a Boy with an unclean Spirit. (Mark 9: 14 - 29).
If you can believe, all things are possible to him who believes.
You will notice that this seems to be the same account as the post of 194. In the post of 194, Jesus was healing a boy with epilepsy, this is disease which once it comes on, it stays for life. The Jews did not believe that demons could possess people forever, but for periods of time only. Both situations were called demon possession because they did not understand medically the difference, but they knew somehow that these were not the same situations. Like epilepsy, you can seem normal until an attack happens, then you act in a totally different manner. This is how they are similar; the demon possessed person only acts like it when the demon is actually possessing him. The person with epilepsy seems to be be possessed intermittently, while the demon possessed person is constantly tormented until the demon is cast out or he (the demon) leaves. Both of these situations require more attention then the disciples could handle. This is why they failed in both accounts. The fact that they failed, make us think this is the same account. This is why I keep saying these are two different situations, but are very similar in nature and easy to miss. Most commentaries lump these together also, if you do a word search of these accounts you will see the Apostles used two different words to describe these demon possessed boys.