Mark 9:23 has been traditionally taught to mean that you can have your miracle if YOU can believe. If you can’t believe, then Jesus isn’t going to give you your miracle.
But if you study the Greek structure of the verse, it’s actually saying, “Can you believe that all things are possible to him [Jesus] who is always believing?”
That makes a world of difference! It’s not about how well or how much you can believe, but WHO you believe. Jesus is the only one whose faith is always constant and never wavers. His faith never fails! And if you can believe that all things are possible for Jesus who never doubts, never wavers, then you are on your way to receiving your miracle!
Beloved, have faith not in your faith, but in Him who always believes and always wants to do good to you!