You will see greater things than these.
What is greater than cleansed lepers, upright paralytics, and freed slaves?
And when they come there, they will remove from it all its detestable things and all its abominations. And I will give them one heart, and a new spirit I will put within them. I will remove the heart of stone from their flesh and give them a heart of flesh, that they may walk in my statutes and keep my rules and obey them. And they shall be my people, and I will be their God.
A new heart. That is the greatest miracle I've ever witnessed.