"But in your hearts set apart Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have. But do this with gentleness and respect, keeping a clear conscience, so that those who speak maliciously against your good behavior in Christ may be ashamed of their slander." - 1 Peter 3:15-16
During the 90's we would occasionally watch a political talk show called "The Capital Gang". My son, who was quite young at the time, would ask why the guys kept yelling at each other. He concluded that they were angry and to a young mind, that just didn't make sense. Belief and conviction is good, but it is best communicated with gentleness and respect.
Many Christians are quick to quote the above passage up to the word "But". They are armed to the hilt and ready for battle whenever questioned about their faith. Peter called believers to always be ready with an answer for their hope, "but" with gentleness and respect. It's not just what we speak that brings truth to light, but how we speak. Belief and conviction is good, but it is best communicated with gentleness and respect.
Always be well prepared with Biblical truth in the face of error my friend. But may truth come with love. Love the lost as Jesus did. Answer their queries with the grace that has changed your life as well. Be someone with a clear and concise conviction, but communicate it with gentleness and respect.