20:13. For thou shalt make them turn their back: in thy remnants thou shalt prepare their face.
In thy remnants thou shalt prepare their face… Or thou shalt set thy remnants against their faces. That is, thou shalt make them see what punishments remain for them hereafter from thy justice. Instead of remnants, St. Jerome renders it funes, that is, cords or strings, viz., of the bow of divine justice, from which God directs his arrows against the faces of his enemies.
20:14. Be thou exalted, O Lord, in thy own strength: we will sing and praise thy power.
Psalms Chapter 21
Deus Deus meus.
Christ's passion: and the conversion of the Gentiles.
21:1. Unto the end, for the morning protection, a psalm for David.
21:2. O God my God, look upon me: why hast thou forsaken me? Far from my salvation are the words of my sins.
The words of my sins… That is, the sins of the world, which I have taken upon myself, cry out against me, and are the cause of all my sufferings.
21:3. O my God, I shall cry by day, and thou wilt not hear: and by night, and it shall not be reputed as folly in me.