"If you can?!"

17…“Teacher, I brought you my son, who is possessed by a spirit that has robbed him of speech. 18Whenever it seizes him, it throws him to the ground. He foams at the mouth, gnashes his teeth and becomes rigid I asked your disciples to drive out the spirit, but they could not.”
19“O unbelieving generation,” Jesus replied, “how long shall I stay with you? How long shall I put up with you? Bring the boy to me.”
20So they brought him. When the spirit saw Jesus, it immediately threw the boy into a convulsion. He fell to the ground and rolled around, foaming at the mouth.
21Jesus asked the boy’s father, “How long has he been like this?”
“From childhood,” he answered. 22“It has often thrown him into fire or water to kill him. But if you can do anything, take pity on us and help us.”
23“ ‘If you can’?” said Jesus. “Everything is possible for him who believes.”
24Immediately the boy’s father exclaimed, “I do believe; help me overcome my unbelief!”
Mark 9:17-24

When I read this I thought that the way the man asked Jesus, “If you can do anything…” was legitimate and in a way trying to be respectful towards him. After all, his disciples were not able to drive the demon out whereas Jesus had given them the authority to do so (ch. 6).
When you read v.19, Jesus almost seems annoyed that despite his presence, teaching, and miraculous works that people still don’t quite get it. I read that as, “What else do I have to do to make you believe?” Yet, Jesus is always compassionate, pitying the poor and the broken that can turn no where else. When you continue reading with the tone of v.19 in mind and read v.23 I couldn’t help but see the situation in my mind, picturing Jesus’ face and tone of voice. “If you can?!” he asked incredulously. “Are you serious? What kind of question is that? Don’t you know that everything is possible for him who believes? If you really want something, then really ask for it. Ask boldly. Don’t say ‘if you can,’ of course I can. Let me direct the question back to you, can you—can you believe?”
“I do believe; help me overcome my unbelief!”
If you read on Jesus drove out the spirit—a deaf and mute spirit—with such power that it shrieked. There is real power here, especially when you consider that at the sight of Jesus the spirit started freaking out (v.20). Jesus in the flesh, with all this power, and still belief comes into question.
Do we pray like the father of the demon-possessed child? How many times through the gospels does Jesus say that if you believe anything is possible? He says that if we ask, then the Lord will give. Do we really ask? Or do we just timidly say, “um, if its alright with you…I mean, I know you can do anything but…only if you have time” Do we pray and ask boldly or are we saying “if you can?”
Read through the gospels, Jesus healed the people that had the temerity approach Jesus no matter the inconvenience. People bore a hole in his roof to get to him—that’s risking ticking somebody off real bad. Blind men were calling out his name to the point that people were telling them to shut up and go away. Their determination got Jesus’ attention, rising above the din of the crowd. They were desperate.
If he were here where we could see him in his physical body, do you think we would talk to him the same way that we pray? I doubt it. Would our pleas get lost in the crowd, or would we find a way to be heard?