Many people leave evangelism up to Sunday school teachers and the preaching of the pastor. However, this confuses teaching with evangelism. The teaching ministry of the church is essential to the growth of the kingdom, but its primary task is to educate those who are already Christians — any evangelism that happens is secondary. If you feel unequipped to share the Gospel, seek a program designed to help you preach the Gospel to those who do not know Jesus.
For further study:
The Bible in a year: