So Philip ran to him and heard him reading Isaiah the prophet and asked, “Do you understand what you are reading?”
We have here the story of the conversion of an Ethiopian eunuch to the faith of Christ, by whom, we have reason to think, the knowledge of Christ was sent into that country where he lived, and that scripture fulfilled, Ethiopia shall soon stretch out her hands (one of the first of the nations) unto God, Psa 68:31. I.
Commenting on Acts 8:26-40
And he said, how can I, except some man should guide me?.... Which shows that he was of an excellent spirit and temper; since instead of answering in a haughty and disdainful manner, as great men are too apt to do; and instead of charging Philip with, impertinence and insolence, in interrupting him whilst reading, and putting such a question to him, he expresses himself...
Verse 30. And Philip ran, etc. Indicating his haste, and his desire to obey the suggestions of the Spirit. A thousand difficulties might have been started in the mind of Philip if he had reflected a little. The eunuch was a stranger; he had the appearance of a man of rank; he was engaged in reading; he might be indisposed to be interrupted or to converse, etc.