"'Everything is possible for one who believes.'...The boy's father exclaimed, 'I do believe; help me overcome my unbelief!'" — Mark 9:23-24
The desperate father's plea reverberates down the centuries. Every parent understands. You're desperate to help your child. Prayer isn't so continual (1 Thessalonians 5:17) as involuntary: "God, please help!"
A son suffers seizures from demon-possession. As a mild epileptic, I know how terrifying seizures can be for my loved ones. No doubt in panic, the helpless father seeks the help of Jesus' disciples. But they're unable to help, and an argument with the local religious leaders ensues.
Though this happened before Jesus' crucifixion and resurrection, we see the kingdom of God in Christ invading the kingdom of the world" (Revelation 11:15), conquering evil.
But the boy's father doesn't realize this. He's just reaching out to the Savior: "If you can do anything... help us."
Jesus' response—"Everything is possible for one who believes"—may sound trite. The father responds with uncommon honesty: "I do believe; help me overcome my unbelief!" Then "the God thing" happens. Jesus frees the boy of the demon, heals him of his seizures, and restores him to his family. The honest-to-God father with just a mustard seed of faith now has his son back—healthy and whole. This is resurrection life.