Acts 8:30-31, 35—And when Philip ran up, he heard him reading Isaiah the prophet and said, Do you really know the things that you are reading? And he said, How could I unless someone guides me? And he entreated Philip to come up and sit with him…And Philip opened his mouth, and beginning from this Scripture he announced Jesus as the gospel to him.
For further reading please refer to CWWL 1989, vol. 3, “The Exercise and Practice of the God-ordained Way,” ch. 13, pp. 305-306 and CWWL 1989, vol. 3, “The Exercise and Practice of the God-ordained Way,” ch. 17, pp. 337-338.