I think some people forget that the purpose of the Bible is to lead us to the Lord – not the other way around.
Hey Chuckt how are you?
You know, I thought would be sort of a strange place to leave out what is both right before those two verses and what is after them though, because right before that the Spirit himself is actually directing Philip to the eunuch's chariot in Acts 8:29 Where the eunuch is reading about Jesus Christ in the book of Isaiah right there (he just doesnt know who he is reading about because everything concerning Christ had just come to pass as they prophesied it would) and a name has been given men (Isaiah does not speak the name).
But there was nothing spiritual at all in any of that really but his reading out of Isaiah 53:7 which was speaking of the sufferings of a man (even Jesus Christ) as the prophets do testify to this( John 5:39, Acts 3:18, & Luke 24:25-27)
But per the OP's words about the scriptures leading to the Lord, or the other way around (faith cometh by hearing and hearing by the word of God) and here we have Philip (led by the Spirit) using the testimony of Isaiah (who is one who prophesied of the sufferings of Christ) to preach Jesus Christ (who is the word of God) begining at Isaiah 53:7
Because the eunuch's question was really simple,
who exactly is this prophet talking about?
Acts 8:34
And the eunuch answered Philip, and said, I pray thee,
of whom speaketh the prophet this? of himself, or of some other man?
And obviously Philip knew this was Jesus being a living witness to the testimony of the prophets (which testified of Jesus Christ) which is the name now given of men and where the voices of the prophets find themselves in.
The very next
Acts 8:35 Then Philip opened his mouth, and began at the same scripture, and preached unto him Jesus
Which scripture?
In Acts 8:32 it shows he is reading out of the book of Isaiah 53:7
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...
And again that is where he preached unto
him Jesus (as that man) the eunuch asked about.
So there really wasnt anything spiritially speaking there because that is what is plain. Afterall Paul said to those who had come to Christ (who were babes in Christ) having believed, but yet carnal that he just couldnt speak unto them as unto spiritual as he could those who were so (even though they could get the basics concerning the sufferings of Christ, him being crucified, buried and raised again on the third day there were spiritual things they had yet to gain through use.
And in the next few verses (give or take) is basically the eunuch asking what is keeping him from being baptized, and Philip saying, if you believe you may and so he was.
The next thing we know in verse
39 ... the Spirit of the Lord caught away Philip, that the eunuch saw him no more: and he went on his way rejoicing
Thats all that it really shows there though.
They seemed to be far better at preaching Jesus Christ out of the OT (to prove he was the Christ) then they are today.
God bless you Chuckt good to see you again