Famous saying: action speaks louder than words.
This saying is valid for showing what spirit you are of, because you can’t fake fruit meaning you can’t fake what’s in your life. Your fruit will show for all to see and they will be able to easily judge what spirit you are of based on your fruits. They will be able to see what kind of person you are based on what you do, how you speak to others, how you treat others and etc.
Matthew 12:33 — 12:37
What You Do Shows What You Are
33 “If you want good fruit, you must make the tree good. If your tree is not good, it will have bad fruit. A tree is known by the kind of fruit it produces. 34 You snakes! You are so evil. How can you say anything good? What people say with their mouths comes from what fills their hearts. 35 Those who are good have good things saved in their hearts. That’s why they say good things. But those who are evil have hearts full of evil, and that’s why they say things that are evil. 36 I tell you that everyone will have to answer for all the careless things they have said. This will happen on the day of judgment. 37 Your words will be used to judge you. What you have said will show whether you are right or whether you are guilty.”