Acts 8:35 (KJV)

And Philip ran thither to him, and heard him read the prophet Esaias, and said, Understandest thou what thou readest?

And he said, How can I, except some man should guide me? And he desired Philip that he would come up and sit with him.

The place of the scripture which he 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.

And the eunuch answered Philip, and said, I pray thee, of whom speaketh the prophet this? of himself, or of some other man?

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?

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.

And when they were come up out of the water, the Spirit of the Lord caught away Philip, that the eunuch saw him no more: and he went on his way rejoicing.

But Philip was found at Azotus: and passing through he preached in all the cities, till he came to Caesarea.