Acts 8:26-30

But an angel of the Lord spoke to Philip, saying, “Get ready and go south to the road that descends from Jerusalem to Gaza.” (This is a desert road.)

So he got ready and went; and there was an Ethiopian eunuch, a court official of Candace, queen of the Ethiopians, who was in charge of all her treasure; and he had come to Jerusalem to worship,

and he was returning and sitting in his chariot, and was reading Isaiah the prophet.

Then the Spirit said to Philip, “Go up and join this chariot.”

Philip ran up and heard him reading Isaiah the prophet, and said, “Do you understand what you are reading?”