Here in New England where I live, baseball is a near-religious pursuit. Even if it were against the law to talk about the Boston Red Sox while at work, the fans couldnt stopthey love their team that much.
That raises a question in my mind for Christians: Are there times when a Christian shouldnt talk about God? I think so. In the face of insincere challenges to our faith, silence may often be the best response. In the hostile situation of Jesus exchange with Caiaphas, He chose silence at first (Matt. 26:63). He understood that Caiaphas wasnt interested in the truth (v.59). While we dont always know anothers heart, we must be sensitive to the leading of the Spirit in every situation that we may know how [we] ought to answer each one (Col. 4:6).
Also, if an answer to a question will move the discussion down a rabbit trail and away from Christ, we might want to stop the conversation and pick it up another day.
Are there other times when silence may be best? If talking about faith distracts us or co-workers from performing our job, we should stay focused on our work. Or if someone has shown a continual resistance, we might choose to stop pressing them. Remember, we can be a witness of Gods grace with our conduct as well (1 Peter 3:1-2).
Read: Matthew 26:57-64