Matthew 12:33-37

A good tree produces only good fruit, and a bad tree produces bad fruit. You can tell what a tree is like by the fruit it produces. You are evil snakes, so how can you say anything good? Your words show what is in your hearts. Good people bring good things out of their hearts, but evil people bring evil things out of their hearts. I promise you that on the day of judgment, everyone will have to account for every careless word they have spoken. On that day they will be told that they are either innocent or guilty because of the things they have said.