The passage from the prophet Isaiah, Is 53:7-8, which the eunuch was reading when Philip approached him, depicts the Servant of Jehovah, cf. Is 42:1.
For the sins of men He goes without complaint to voluntary sufferings and death. In this voluntary humiliation, the judgment, the divine predetermination concerning Him, was fulfilled.
Yet who will understand His generation, γενεὰν, cf. Mt 11:16, the generation of people contemporary with Him, and their moral fall? For by their very malice against their Savior, His life is taken from the earth.
Concerning this passage the eunuch asked Philip, "Of whom does the prophet say this? Of himself, or of someone else?"
Philip then began to explain this passage of Scripture to him as a prophecy of the Messiah. He preached Jesus to him as the One who had already fulfilled this prophecy in Himself.
By His sufferings on the Cross and His death, He cleansed the human race from its iniquities.
If this verse, Is 53:8, is explained in connection with the words by which it ends in the book of the prophet Isaiah itself, it can also be paraphrased this way.
"In His voluntary humiliation the divine predetermination concerning Him was fulfilled. But who of His generation, of the men of the age contemporary with Him, can understand that His life is taken from the earth?
And who can understand that He is led to death for the iniquities of men?"