“God speaks through his Word as believers read and study the spiritual truths of the Bible. There is nothing more important than a regular systematic study of the Bible. John Calvin tells us, “Scripture is needed as guide and teacher for anyone who would come to God the creator.” A daily reading of the Bible helps disciples to grow and mature spiritually. The Bible will strengthen your faith, speak to your heart, and guide you in all of life’s tough decisions.”
I have recently been impressed by Winfield Bevins and what he has to say about discipleship and evangelism. He has a free ebook available online or you can buy the hard-copy about organic evangelism; its called Grow.