Mark 9:14-29 - Believe It And Not

Posted on 01/27/2026

All of us live in the tension of belief and unbelief. What difference does true belief make?

Our text in this study is: Mark 9:14-29
Series: Who Do You Say That He Is?
Gene Pensiero Jr

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Most Americans—83% to be exact—say they believe in God. But does that belief actually change anything? As the book of James reminds us, even the demons believe, and they shudder. In this video, titled "Mark 9:14-29 - Believe It And Not," we continue our verse-by-verse study through the Gospel of Mark, encountering a chaotic scene at the foot of the mountain that challenges our understanding of what it means to truly trust Jesus.

While Jesus was on the mountaintop, the disciples were down in the valley, failing miserably. A desperate father brought his possessed son to the nine disciples left behind, but they were unable to cast the demon out. Instead of falling to their knees in prayer, they ended up in a theological shouting match with the scribes. This study unpacks why the disciples failed. They had slipped into a "Samson mentality," assuming that because they had power yesterday, they could coast today without maintaining a fresh dependence on the Lord.

The heart of this passage is the father’s desperate plea. After watching the disciples fail, his faith is shaken. He asks Jesus, "If you can do anything, help us." Jesus throws that doubt right back at him: "If I can?" The problem is never God's lack of power; it is often our lack of faith. We look at one of the most honest prayers in the entire Bible: "I do believe; help my unbelief!" This isn't a contradiction; it is a confession. It is the sound of a man turning from doubt to devotion in a crisis.

We also tackle the difficult subject of spiritual warfare. Jesus reveals that this specific kind of unclean spirit—deaf, mute, and violent—comes out only by prayer. This isn't about treating prayer like a rechargeable battery or a magic formula. It is about living in a constant state of reliance on the King.

Finally, we close with a thought from C.S. Lewis about the difference between believing a rope is strong and actually hanging from it over a precipice. Real faith isn't just an intellectual agreement; it is a lifeline. If you are looking for a Calvary Chapel Bible study that digs deep into the text without taking itself too seriously, we invite you to join us. Let’s learn to bring our unbelief to the One who can actually handle it.