Eternal Rest
Eternal rest grant unto them, O Lord, and let perpetual light shine upon them. May they rest in peace. Amen. May their souls and the souls of all the faithful departed, through the mercy of God, rest in peace. Amen.
Source. traditional English of the Requiem aeternam. Eternal rest grant unto them, O Lord, and let perpetual light shine upon them. May they rest in peace. Amen. May their souls and the souls of all the faithful departed, through the mercy of God, rest in peace. Amen.
On the wording. singular toggle ("unto him/her") for praying for one person.