What an encouragement!
100% agree with the understanding demonstrated from the text, Mark 9;28-29, which is such an abused text with man at the center. If we take casting a mountain into the sea literally (I do) because we generally make that passage about "My faith" most of the sermons Ive heard (have to) make the mountain something more "Attainable" for us. The mountain of stress, yhe mountain of trouble at work, the mountain of family problems etc. Where, if mountain casting is literal then the passage Can't be about me & what I can do but about Christ's faithfulnes to The Father, His power, His authority and His ability etc. Pastor Jones demonstrates that Mark does not stray from his stated purpose for writing this book, and it isn't about us, but the Good News of Jesus who is The Christ, the Son of God.