The place of the scripture which he read was this, He was led as a …

And, behold, a man of Ethiopia, an eunuch of great authority under Candace queen of the Ethiopians, who had the charge of all her treasure, and had come to Jerusalem for to worship. (Acts 8:27)

Acts 8:27 (KJV)

Was returning, and sitting in his chariot read Esaias the prophet. (Acts 8:28)

Acts 8:28 (KJV)

Then the Spirit said unto Philip, Go near, and join thyself to this chariot. And Philip ran thither to him, and heard him read the prophet Esaias, and said, Understandest thou what thou readest? (Acts 8:29-30)

Acts 8:30 (KJV)

And the eunuch answered Philip, and said, I pray thee, of whom speaketh the prophet this? of himself, or of some other man? (Acts 8:34)

Acts 8:34 (KJV)

Then Philip opened his mouth, and began at the same scripture, and preached unto him Jesus. (Acts 8:35)

Acts 8:35 (KJV)

And as they went on their way, they came unto a certain water: and the eunuch said, See, here is water; what doth hinder me to be baptized? (Acts 8:36)

Acts 8:36 (KJV)