Psalm 137 records the experience of the Jews who
were taken off into captivity in Babylon after the destruction
of Jerusalem, ca. 600 BCE:
By the rivers of Babylon, there we sat down, yea,
we wept, when we remembered Zion. We hanged our harps upon the
willows in the midst thereof. For there they that carried us
away captive required of us a song; and they that wasted us
required of us mirth, saying, Sing us one of the songs of
Zion. How shall we sing the Lord's song in a strange land? If
I forget thee, O Jerusalem, let my right hand forget her
cunning. If I do not remember thee, let my tongue cleave to
the roof of my mouth; if I prefer not Jerusalem above my chief
joy. (1-6)
Stephen's association of the captivity of the Jewish and
Irish nations will return in Aeolus, where the
equivalence is implied by the narrative itself.