Proverbs 16:23 (NKJV)
Over the years, I have met people from many different nations who do not have English as their mother tongue, but who do speak English as a second language. Many of these people have an accent when they speak English, which is understandable, and some people have a more noticeable accent than others. Sometimes the accent a person has helps you identify where they are from and what their first language is, but that is not always the case.
When someone speaks a language and they have an accent, it shows you that the language they are speaking is not their native language, but their native language and how they speak it influences how they speak their second language. In the same way, we can have a biblical accent, so to speak, because we have God's Word in our heart and that is shown with what we say. The best thing is if our speech is accented with biblical truth and it is apparent to other people that we spend time in God's Word.
Just like someone who speaks English or another language as their second language can have an accent, because they are used to saying things a certain way, Christians should have a biblical accent that shows that we are used to saying things from a biblical perspective. We do not have to walk around quoting Bible verses, but it is better if what we say is influenced by what we know from the Bible and our relationship with God. A biblical accent is something that we should not want to lose, but something we should all develop.