The angels in the flesh vs children of fallen stars

Psalm 137 

1 By the rivers of Babylon, there we sat down,

yea, we wept, when we remembered Zion.

2 We hanged our harps upon the willows in the midst thereof.
3 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.

4 How shall we sing the Lord’s song in a strange land?