136:6. Let my tongue cleave to my jaws, if I do not remember thee: If I make not Jerusalem the beginning of my joy.
136:7. Remember, O Lord, the children of Edom, in the day of Jerusalem: Who say: Rase it, rase it, even to the foundation thereof.
136:8. O daughter of Babylon, miserable: blessed shall he be who shall repay thee thy payment which thou hast paid us.
136:9. Blessed be he that shall take and dash thy little ones against the rock.
Dash thy little ones, etc… In the spiritual sense, we dash the little ones of Babylon against the rock, when we mortify our passions, and stifle the first motions of them, by a speedy recourse to the rock which is Christ.
Psalms Chapter 137
Confitebor tibi.
Thanksgiving to God for his benefits.
137:1. For David himself. I will praise thee, O Lord, with my whole heart: for thou hast heard the words of my mouth. I will sing praise to thee in the sight of the angels:
137:2. I will worship towards thy holy temple, and I will give glory to thy name. For thy mercy, and for thy truth: for thou hast magnified thy holy name above all.