What do you do when you want find out if something is true or not? Is there someone you can trust to tell you the truth?
When John Calvin was a young boy he was taught many things that weren't true, but when he discovered the truth about Jesus Christ it was a very exciting time for him. It was so exciting he just had to tell other people.
God helped John Calvin to teach the truth. He was one of the men who started what we now call the Reformation.