"As for Philip, an angel of the Lord said to him, 'Go south down the desert road that runs from Jerusalem to Gaza.' So he started out, and he met the treasurer of Ethiopia, a eunuch of great authority under the Kandake, the queen of Ethiopia. The eunuch had gone to Jerusalem to worship, and he was now returning. Seated in his carriage, he was reading aloud from the book of the prophet Isaiah.
The Holy Spirit said to Philip, 'Go over and walk along beside the carriage.'
Philip ran over and heard the man reading from the prophet Isaiah. Philip asked, 'Do you understand what you are reading?'
The man replied, 'How can I, unless someone instructs me?' And he urged Philip to come up into the carriage and sit with him. … Philip told him the Good News about Jesus."
God gave Philip very specific instructions. He had for Philip a divine appointment with an influential man who obviously was seeking God. Philip obeyed and shared his faith. Note that he used Scripture to talk about the gospel. He had to know and understand the Scriptures to open them up to another person. Do you know Scripture well enough to do this? Do you use God's Word when you share your faith? Finally, do you believe that God is already preparing people to learn about him, and are you willing to be sent to them and to open your mouth about Jesus?