There are certainly many references in the Bible to evangelism such as John 4:35-38 and First Corinthians 3:5-9 or the most popular Biblical example towards the end of Matthew 28 where Jesus told his followers "Go, therefore, and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the holy Spirit, teaching them to observe all that I have commanded you."
However, the means in which to tell other nations about The Lord and teach of the Bible was not specified. One of the more recent popular terms and practices is 'Lifestyle Evangelism' which simply means other ways of spreading the word of the Bible and Jesus (i.e., those of us who are not Ministers or who otherwise are looking for ways of spreading Christianity without necessarily preaching). So it could be interpreted as non-verbal means of spreading God's word by having others seeking to follow your ways (i.e., your lifestyle). Rather than pro-active means, Lifestyle Evangelism can mean reactive means of starting a conversation about Jesus, like wearing a Christian tee shirt certainly can be a conversation starter and lead to a discussion.
There are some who debate whether anything short of preaching or verbal evangelizing is really following God's word, but I think Matthew 28 is the best example in that it doesn't specify the MEANS in which to spread the word to other nations - it just says go out and spread the word.
Not everyone is the Type A personality that can start a conversation with anyone. Others need an ice-breaker and this has been for many the hardest part of fulfilling your need as a Christian to practice evangelism. So for many Christians, Lifestyle Evangelism can fulfill that desire to fulfill Jesus' statement in Matthew 28 by doing rather than by preaching. If others see that you're living a great life, doing good unto others, committing to family, friends, neighbors, people in need, then others will want to ask how you got there, and that's your ice-breaker to start a conversation. No you don't have to start that first discussion with reciting any Biblical text, but as you get to know the person, your beliefs and lifestyle will surely come out. Not by preaching, but in the things you do.
If you would like more about Lifestyle evangelism, we have an entire Blog on our website devoted to this topic and it's fun to see what ideas others have on this topic.
Bryan K. Johnson is the President and Owner of BlueHeavenTees.com
Blue Heaven Tees offers innovative and unique Christian Tee Shirts, Christian Hoodies and Sweatshirts and other great Christian gift ideas. Check out our new fall line now in stock!