Matthew Poole and continuators on Acts 8:32

32 The place of the scripture which was read, was this, He was led as a sheep to the slaughter, and like a lamb dumb before his shearer, so he opened not his mouth:

Gods Providence is remarkable, that the Eunuch should be reading this very Scripture, which contains so fundamental truths, and which he had most need for to be informed of: The words referred into, are in Isaiah 53.7. whether read in the Hebrew tongue, which the Eunuch might have learned of many Iews living in Ethiopia; or whether they were read out of the Translation of the Seventy, which was then in common use, is not so necessary an inquiry; both being to the same intent and purpose.

Christ was indeed as a sheep for his patience:

Not opening his mouth to defend his own case; but especially he was as a sheep, in being a Sacrifice for us; the true Paschal Lamb that causeth the destroyer to pass from us; and yet he is our Shepherd too, to supply and preserve us, Psal. 23.1.