I want to defend the right of employees to share the gospel in appropriate situations. Every situation requires wisdom and insight. I don't think it's wise to say, "Share the gospel every time you can". I can see all kinds of problems that come from that approach.
Mark DeverAdvice on evangelism needs to be tailored to individual situations. For instance, I know someone who needs to be encouraged to speak less and work more. That would be a better testimony for him because he has certainly let his work colleagues know about Jesus. It's not that I don't want him to witness about Jesus, but I have a lot of sympathy for his employer. He is paying for work to be done.
Mark Dever