The Book of PsalmsPsalm 19
Exaudiat te Dominus. A prayer for the king.
The Douay-Rheims numbers the Psalms as the Latin Vulgate does. In Bibles translated from the Hebrew this is Psalm 20. Read Psalm 20 in the WEBC.

19Unto the end. A psalm for David.
2May the Lord hear thee in the day of tribulation: may the name of the God of Jacob protect thee.
3May he send thee help from the sanctuary: and defend thee out of Sion.
4May he be mindful of all thy sacrifices: and may thy whole burnt offering be made fat.
5May he give thee according to thy own heart; and confirm all thy counsels.
6We will rejoice in thy salvation; and in the name of our God we shall be exalted.
7The Lord fulfill all thy petitions: now have I known that the Lord hath saved his anointed. He will hear him from his holy heaven: the salvation of his right hand is in powers.
8Some trust in chariots, and some in horses: but we will call upon the name of the Lord our God.
9They are bound, and have fallen; but we are risen, and are set upright. O Lord, save the king: and hear us in the day that we shall call upon thee.
Notes by Bishop Challoner
- 7 The salvation of his right hand is in powers. That is, in strength. His right hand is strong and mighty to save them that trust in him.