Peter Randolph’s Sketches of Slave Life:

Now, instead of looking with my real eyes to see my Savior, I felt him in me, and I was happy. The eyes of my mind were open, and I saw things as I never did before. I wanted all the other slaves to see him thus, and feel as happy as I did. I used to talk to others, and tell them of the friend they would have in Jesus, and show them by my experience how I was brought to Christ, and felt his love within my heart,–and love it was, in God’s adapting himself to my capacity. After receiving this revelation from the Lord, I became impressed that I was called of God to preach to the other slaves. I labored under this impression for seven years, but then I could not read the Bible, and I thought I could never preach unless I learned to read the Bible. I thought it was written by the Almighty himself. I loved this book, and prayed over it and labored until I could read it. I used to go to the church to hear the white preacher. When I heard him read his text, I would read mine when I got borne. This is the way, my readers, I learned to read the Word of God when I was a slave. Thus did I labor eleven years under the impression that I was called to preach the gospel of Jesus Christ, the ever-blessed God.