(Pro 5:3 KJV) For the lips of a strange woman drop as an honeycomb, and her mouth is smoother than oil:
Have you ever felt like you had a speech impediment when you tried to speak? You stumble and stutter. You can’t remember the right word. You struggle to find the end of a sentence. You realize that your verb is not matching your noun. I have been there. I get that way when I need to leave a message on a voice mail abomination. This reminds us that “smoother” (2509) speech is not necessary to be godly.
On the surface this warns us against people who are too glib. It also should remind us that being genuine is more important than great rhetoric.
So? One of the turmoils of life that we are not to get all tensed up about is speaking like a professional. Unless you are going to make radio commercials it won’t help you a lot.