There is a simple rule we can follow to guide us in our conversation: If it is good, uplifting, wholesome, and pleasant, say all you want to, but if it is evil, negative, critical, and complaining, then don't say it. Ask God to change your heart so there is not even a hint of wanting to say it. What is in our heart will eventually come out of our mouth, so we cannot change what we say unless we change what we think.