In the midst of his success in Samaria, Philip was unexpectedly called to go to the middle of the desert and wait for further instructions. It says in Acts 8:27-31:
And he rose and went. And there was an Ethiopian, a eunuch, a court official of Candace, queen of the Ethiopians, who was in charge of all her treasure. He had come to Jerusalem to worship and was returning, seated in his chariot, and he was reading the prophet Isaiah. And the Spirit said to Philip, “Go over and join this chariot.” So Philip ran to him and heard him reading Isaiah the prophet and asked, “Do you understand what you are reading?” And he said, “How can I, unless someone guides me?” And he invited Philip to come up and sit with him. (ESV)
Luke’s description of the man that Philip encountered in the middle of the desert provides a clearer understanding of what was going on when these two strangers met. First, it’s very unlikely that the Ethiopian was Jewish or had any contact with the temple in Jerusalem. As a foreigner and a man that had been castrated (G2135), the Ethiopian was excluded from being a member of the Jewish congregation (Deuteronomy 23:1). The Ethiopian’s intent when he went to Jerusalem to worship was probably to obtain the ancient scroll that he was reading when Philip joined him in his chariot. It could have been a personal quest that led the Ethiopian to seek out knowledge about God or an assignment from the queen that caused him to travel hundreds of miles to Jerusalem. The Ethiopian’s identification as a man of great authority who had the charge of all the queen’s treasure meant that he was both intelligent as well as financially secure. It’s likely that the Ethiopian’s wealth enabled him to obtain the scroll of Isaiah which probably cost him a substantial amount of money.
It says in Acts 8:32-33 that the place of the scripture which the Ethiopian eunuch read was this, “He was led as a sheep to the slaughter; and like a lamb dumb before his shearer; so opened he not his mouth: in his humiliation his judgment was taken away: and who shall declare his generation? for his life is taken from the earth.” The Ethiopian eunuch seemed to have stumbled upon a passage of scripture that was very relevant to the day in which he lived. With Jesus’ death and resurrection still fresh in everyone’s mind, it seems almost ironic that the Ethiopian left Jerusalem with an ancient prophecy that was directly related to their current circumstances.
After Philip explained to him how he could be saved, the Ethiopian wanted Philip to immediately baptize him (Acts 8:36). Even though they were in the middle of the desert, Luke indicated “they came unto a certain water” (Acts 8:36) and after confirming the Ethiopians decision, Philip complied with his request. Luke stated, “And Philip said, If thou believest with all thine heart , thou mayest. And he answered and said, I believe that Jesus Christ is the Son of God. And he commanded the chariot to stand still: and they went down both into the water, both Philip and the eunuch; and he baptized him” (Acts 8:37-38).