Has anyone ever considered Jesus’s words

Has anyone ever considered Jesus’s words that he said his kingdom is not of this world? I didn’t just say this once either. But when you read the book of revelation it says Jesus will set up his kingdom on earth. How could the book of revelation contradict what Jesus himself said about his kingdom not being of this world? Something to think about. I rather believe Jesus’s words found in the 4 gospels than to believe what’s written in the book of revelation. What do you think?