Even though we may have a hard time sharing our faith and, yes, some people have a gift for sharing, the Bible clearly indicates that evangelism is for everyone; in fact, it is considered to be a fruit of the Spirit! Most of us associate the fruit of the Spirit with Galatians 5:22-23, where Paul describes fruit as godly character. But Paul indicates that fruit also involves leading unbelievers to Christ (Romans 1:13, 1 Corinthians 16:15, Colossians 1:6).
Considering that Jesus called us to produce lasting fruit (John 15:16), that we glorify God by being fruitful (John 15:8; Colossians 1:10), and that God despises unfruitfulness (Matthew 21:10,43), Christians cannot relegate the activity of evangelism to a group of “specialists.” Everyone is challenged to be prepared in and out of season to preach the Word (2 Timothy 4:2) as well as to give an answer to everyone who asks us for the hope we have (1 Peter 3:15).
The responsibility for evangelism, then, is for all believers who are instructed to bear fruit and are challenged to be prepared. It is not an issue of personality type, nor should it be an issue of personal comfort. It is an issue of obedience.
Source : Jeffrey J. Schutz, “A World in Need: The Multiple Dimensions of Christian Relevance in Society,” Focal Point, summer 1997, p. 9